Here is decades' worth of knowledge freely available online for those who love to learn. Links that fit under multiple categories are listed only once.
What are your favorite sites to learn from? What sites would you add to this list?
CONTENTS:
I. Top Picks
II. Universities and Higher Education
III. General Collections
IV. How-to & DIY
V. Studying with Peers
VI. Online Books, eBooks, & Journals
VII. Computers, Software, & Programming
VIII. Science & Math
IX. Logic, Words, & Memory
X. Languages
XI. Music
XII. History
XIII. Business, Finance, & Investing
XIV. Food, Nutrition, & Cooking
XV. Survival Tips
XVI. Other
===========
I. TOP PICKS
Khan Academy
http://www.khanacademy.org/
Academic Earth - Online courses from the world's top scholars
http://academicearth.org/
TED - Technology, Entertainment, & Design
http://www.ted.com/
MIT Open CourseWare
http://ocw.mit.edu/courses/
Stanford Engineering Everywhere
http://see.stanford.edu/see/courses.aspx
Open Yale Courses
http://oyc.yale.edu/
About U. - Collection of free online courses from About.com
http://u.about.com/
Wikiversity
http://en.wikiversity.org/wiki/Wikiversity:Main_Page
YouTube EDU
http://www.youtube.com/education?b=400
The Open University - Study at the OU
http://www3.open.ac.uk/study/
http://openlearn.open.ac.uk/
University of the People
www.uopeople.org
University of Reddit
http://ureddit.com/
Open Culture - The best free cultural & educational media on the web
http://openculture.com/
VideoLectures - Exchange ideas & share knowledge
http://videolectures.net/
CosmoLearning - Free educational website with thousands of courses & documentaries
http://www.cosmolearning.com/
================================
II. UNIVERSITIES & HIGHER EDUCATION
Lecture Fox - Free university lectures
http://lecturefox.com/
More Open Courses:
Open Courseware Consortium
http://www.ocwconsortium.org/
Harvard Extension School - Computer Science & Technology
http://computerscience1.tv/2010/spring/
Johns Hopkins University
http://ocw.jhsph.edu/
Kaplan University
http://ocw.kaplan.edu/
Notre Dame
http://ocw.nd.edu/
Princeton's Institute for Advanced Study
http://video.ias.edu/all
Tufts
http://ocw.tufts.edu/
Utah State
http://ocw.usu.edu/
Google in Education
http://www.google.com/edu/index.html
ArsDigita University - Computer science and math lectures
http://aduni.org/courses/
UC Berkeley Webcast - Central service for online video & audio for learners around the globe
http://webcast.berkeley.edu/
UC Berkeley Video Courses - Free education online
http://education.jimmyr.com/
Capilano University
http://ocw.capilanou.ca/
Carnegie Mellon Open Learning Initiative
http://oli.web.cmu.edu/openlearning/
Delft University of Technology
http://ocw.tudelft.nl/courses/
Rice University Connexions - A place to view and share educational modules
http://cnx.org/
Stanford on iTunes U - Stanford-related digital audio content
http://itunes.stanford.edu/content/overview.html
UC Irvine
http://ocw.uci.edu/
UC San Diego Podcasts
http://podcast.ucsd.edu/
University of Chicago's Mind Online - Thought-provoking samples of critical thinking & debate
http://news.uchicago.edu/multimedia
University of Colorado, Colorado Springs
http://www.uccs.edu/~math/vidarchive.html
University of Massachusetts
http://ocw.umb.edu/
University of Michigan
http://open.umich.edu/education
University of Southern Queensland
http://ocw.usq.edu.au/
University of Sydney - Podcast episodes
http://sydney.edu.au/podcasts/2011.php
University of Virginia - Podcasts & webcasts
http://www.virginia.edu/uvapodcast/
University of Washington - Computer Science & Engineering
http://www.cs.washington.edu/education/course-webs.html
Utah Valley University - Online courses & open educational resources
http://open.uvu.edu/
YouTube Channels:
Stanford
http://www.youtube.com/stanford
UC Berkeley
http://www.youtube.com/user/UCBerkeley
University of New South Wales
http://www.youtube.com/user/UNSWelearning
Yale
http://www.youtube.com/yalecourses
======================
III. GENERAL COLLECTIONS
Free Video Lectures - 800+ Online Courses and 19,000+ Videos from Top 30+ Universities on 35+ Categories
http://freevideolectures.com/
Annotum (formerly Google's Knol)
http://annotum.org/
IncrediCampus - Lectures and preparation/admission advice for college & graduate schools
http://www.incredicampus.com/
Learners TV - Thousands of downloadable video lectures on liberal arts, science, engineering, and more
http://www.learnerstv.com/
Online Education Database - 200 free online classes to learn anything
http://oedb.org/library/beginning-online-learning/200-free-online-classes-to-learn-anything
Infoplease - All the knowledge you need
http://www.infoplease.com/
MERLOT - Multimedia educational resource for learning and online teaching
http://www.merlot.org/merlot/index.htm
Internet Archive
http://www.archive.org/
101 Online Self-improvement Resources
http://www.pickthebrain.com/blog/101-self-improvement-resources/
==============
IV. HOW-TO & DIY
WikiHow - The how-to manual that you can edit
http://www.wikihow.com/
How Stuff Works
http://www.howstuffworks.com/
Wonder How To
http://www.wonderhowto.com/categories/
Instructables
http://www.instructables.com/
Make Magazine
http://www.makezine.com/
How-to Help & Videos for Dummies
http://www.dummies.com/
VideoJug - Get good at life
http://www.videojug.com/
How to Create a Book in Wikipedia
http://en.wikipedia.org/wiki/Help:Books
Let's Make Robots
http://letsmakerobots.com/
====================
V. STUDYING with PEERS
Open Study - Study together
http://openstudy.com/
P2P University - Learn anything with your peers
http://p2pu.org/en/
Study Blue - Your digital backpack
http://www.studyblue.com/
==================================
VI. ONLINE BOOKS, eBOOKS, & JOURNALS
Google Books
http://books.google.com/
WikiBooks - Open-content textbooks collection that anyone can edit
http://en.wikibooks.org/wiki/Main_Page
Project Gutenberg
http://www.gutenberg.org/wiki/Main_Page
Planet eBook - Home of free classic literature
http://www.planetebook.com/about.asp
Open Book Project
http://openbookproject.net/
The Free Library
http://www.thefreelibrary.com/
Many Books - Ad-free eBooks
http://www.manybooks.net/
WorldCat - Collections & services of more than 10,000 libraries worldwide
http://www.worldcat.org/
iBiblio - The public's library and digital archive
http://www.ibiblio.org/
LibriVox - Free public domain audiobooks
http://librivox.org/
The Assayer - Web's largest catalog of books whose authors have made them available for free
http://theassayer.org/
Amazon.com Free eBook Collection
http://www.amazon.com/b/ref=amb_link_85650291_15?ie=UTF8&node=2245146011
Scribd - Reading and publishing evolved
http://www.scribd.com/
Textbook Revolution - Student-run site dedicated to increasing the use of free educational materials
http://www.textbookrevolution.org/index.php/Main_Page
Directory of Open Access Journals
http://www.doaj.org/
eReaderIQ - Recent non-public domain freebies & price-drop alerts
http://www.ereaderiq.com/
Longform - New and classic non-fiction articles curated across the web
http://longform.org/
Flatworld Knowledge - The first and largest publisher of free & open textbooks
http://www.flatworldknowledge.com/
=======================================
VII. COMPUTERS, SOFTWARE, & PROGRAMMING
W3Schools - The world's largest web development site
http://www.w3schools.com/
Google Code University
http://code.google.com/edu/
The New Boston - Step-by-step tutorials for multiple coding languages
http://thenewboston.org/
UDacity - CS 101
http://www.udacity.com/
PHP Academy
http://www.youtube.com/user/phpacademy
Better PHP
http://www.youtube.com/betterphp
NetTuts+ - A large collection of coding tutorials
http://nettuts.com/
Tutorial Guide - The site for all your tutorial needs
http://www.tutorialguide.net/
Codecademy - Fun & interactive way to learn how to code
http://www.codecademy.com/
Free Technology Academy - High quality educational material based on free software & open standards
http://ftacademy.org/
Higher Computing for Everyone - Writing basic programs
http://www.highercomputingforeveryone.com/
HTML 5 Please
http://html5please.us/
Rails for Zombies
http://railsforzombies.org/
Ruby Warrior - Open source game to teach Ruby language
http://www.trybloc.com/courses/ruby-warrior/chapters/beginner#/1
Got API - Documentation search engine
http://start.gotapi.com/
Lynda - Online software training videos
http://www.lynda.com/
Intro to Linux
http://www.reddit.com/r/Ubuntu/comments/bbnkp/ive_tinkered_in_ubuntu_before_but_its_the_primary/c0lzpwk
Stack Overflow - Q&A for professional and enthusiast programmers
http://stackoverflow.com/
DZone - Fresh links for developers
http://www.dzone.com/links/index.html
Photoshop & Graphics:
Tutorial Hero - Photoshop & Flash tutorials
http://www.tutorialhero.com/
PSD Tuts+
http://psd.tutsplus.com/
Photoshop Tutorials
http://photoshoptutorials.ws/
Graphic Tutorials
http://www.graphictutorials.net/
Photoshop Pack Graphic Design Resources
http://www.photoshop-pack.com/
PSD FanExtra Tutorials
http://psd.fanextra.com/category/tutorials/
Vandelay Design - Photoshop Tutorial Hall of Fame
http://vandelaydesign.com/blog/design/photoshop-tutorial-tutorials/
Grokking the GIMP
http://gimp-savvy.com/BOOK/index.html
Video CoPilot - Tutorials for VFx & motion graphics
http://www.videocopilot.net/tutorials/
==================
VIII. SCIENCE & MATH
Scirus - The most comprehensive scientific research tool on the web
http://www.scirus.com/
Cite Seer X - Access scientific and scholarly knowledge
http://citeseerx.ist.psu.edu/
getCited - Academic database, directory, & discussion forum
http://www.getcited.org/
National Science Digital Library - Explore, share, create
http://nsdl.org/
Science Magazine Podcasts
http://www.sciencemag.org/multimedia/podcast/
National Programme on Technology Enhanced Learning - Science, Engineering, & Technology
http://www.nptel.iitm.ac.in/
KQED's Quest - Explore science, nature, and environment stories from Northern California and beyond
http://science.kqed.org/quest/
Freelance Teacher - Videos on physics, chemistry, math, & biology
http://www.freelance-teacher.com/videos.htm
FHSST - Free high school science texts in physical sciences & math
http://fhsst.org/
cK-12 Flexbooks
http://www.ck12.org/flexbook/
Paul's Online Math Notes
http://tutorial.math.lamar.edu/
Reddit's List of Useful Online Math Resources
http://www.reddit.com/r/math/comments/bqbex/lets_list_all_the_useful_free_online_math/
Math, Better Explained
http://betterexplained.com/
Astronomy & Outerspace:
Space Engine - Free space simulation software
http://en.spaceengine.org/
Google Sky
http://www.google.com/sky/
NASA for Students
http://www.nasa.gov/audience/forstudents/index.html
Scale of the Universe - Interactive Flash Animation
http://www.scaleoftheuniverse.com/
Statistics:
Vassar Stats - Concepts and applications of inferential statistics
http://faculty.vassar.edu/lowry/webtext.html
StatSoft Electronic Statistics Textbook
http://www.statsoft.com/textbook/stathome.html
Connexions Collaborative Statistics
http://cnx.org/content/col10522/latest/
Handbook of Biological Statistics
http://udel.edu/~mcdonald/statintro.html
=========================
IX. LOGIC, WORDS, & MEMORY
Mind Tools - Memory improvement techniques
http://www.mindtools.com/memory.html
The Nizkor Project - List of logical fallacies
http://www.nizkor.org/features/fallacies/index.html
Wikipedia's List of Logical Fallacies
http://en.wikipedia.org/wiki/List_of_fallacies
Wikipedia's List of Figures of Speech
http://en.wikipedia.org/wiki/Figure_of_speech
Tool Kit for Rhetorical Analysis
http://grammar.about.com/od/rhetorictoolkit/Tool_Kit_for_Rhetorical_Analysis.htm
KnoWord - Expand your vocabulary
http://knoword.org/
Vocabulary.com - Learn new words & explore language
http://www.vocabulary.com/
Brain Workshop - A Dual N-Back Game
http://brainworkshop.sourceforge.net/
Argument Mapping Tutorials
http://austhink.com/reason/tutorials/
Philosophy Bites - Podcasts of top philsophers
http://www.philosophybites.com/
=============
X. LANGUAGES
Basic Composition - Reading & Writing
http://www.basiccomposition.com/
BBC Languages - Beginner courses in multiple languages
http://www.bbc.co.uk/languages/
Foreign Service Institute Language Courses
http://fsi-language-courses.org/Content.php
Language Guide - Foreign language vocabulary, grammar, & readings
http://www.languageguide.org/
eLanguage School - Free foreign language lessons online
http://www.elanguageschool.net/
Free Online Language Courses via About.com
http://distancelearn.about.com/od/onlinecourses/a/freelanguage.htm
DuoLingo - Learn a language for free & simultaneously translate the web
http://duolingo.com/
Babel Nation - Learning languages online for free
http://www.babelnation.com/
Transparent Language - Language learning software & resources in over 100 languages
http://www.transparent.com/language-resources/languages.html
Survival Phrases - Learn essential travel phrases, tips, and insights
http://survivalphrases.com/
Talk to Me in Korean
http://talktomeinkorean.com/
Chinese Toolbox - Software for learning Chinese through reading
http://www.chinesetoolbox.com/
LiveMocha - World's largest language learning community
http://www.livemocha.com/
American Sign Language (ASL) University
http://www.lifeprint.com/asl101/lessons/lesson01.htm
Handspeak - Sign language
http://www.handspeak.com/
Signing Savvy - Your sign language resource
http://www.signingsavvy.com/index.php
========
XI. MUSIC
Music Theory - Lessons, exercises, & tools
http://www.musictheory.net/
Ear Training & Music Theory Software
http://www.trainear.com/
Basic Music Theory
http://www.howmusicworks.org/
About.com Music Education - Music theory
http://musiced.about.com/od/musictheory/u/musiced_musictheory.htm
Teoria - Music Theory Web
http://teoria.com/
Ultimate Guitar - Lessons, techniques, & styles
http://www.ultimate-guitar.com/lessons/
Justin Guitar - The best guitar instruction on the web
http://www.justinguitar.com/
Chorder - Chord fingering and guitar resources
http://www.chorder.com/guitar-chords/
Funk University - Assembly of Music's Finest
http://www.thefunkuniversity.com/
Play Bass Now - Lessons, licks, and low notes
http://playbassnow.com/
How to Play Piano
http://www.howtoplaypiano.ca/
===========
XII. HISTORY
Teacher Resources - Western Civilization (52 half-hour video programs)
http://www.learner.org/resources/series58.html
Metropolitan Museum of Art - Timeline of Art History
http://www.metmuseum.org/toah/
===============================
XIII. BUSINESS, FINANCE, & INVESTING
Investopedia
http://www.investopedia.com/
Google Advisor
https://www.google.com/advisor/home
Google Finance
http://www.google.com/finance
MarketWatch by WSJ
http://www.marketwatch.com/
Main Street - Business & financial headlines & advice
http://www.mainstreet.com/
============================
XIV. FOOD, NUTRITION, & COOKING
Good Eats Fan Page
http://www.goodeatsfanpage.com/GEFP/index.htm
Jamie's Home Cooking Skills
http://www.jamieshomecookingskills.com/
Chef Todd Mohr's Web Cooking Classes (YouTube)
http://www.youtube.com/user/ChefToddMohr
Nutrition Data - Self nutrition data; know what you eat
http://www.nutritiondata.com/
Nutrition.gov - Smart nutrition & practical tips
http://www.nutrition.gov/
Choose My Plate via USDA
http://www.choosemyplate.gov/
The World's Healthiest Foods
http://whfoods.org/foodstoc.php
Calorie King
http://www.calorieking.com/
Start Making Choices - Simple ideas for living healthier on a budget
http://www.startmakingchoices.com/index.jsp
Eat Right Nutrition Tips
http://www.eatright.org/Public/content.aspx?id=206
================
XV. SURVIVAL TIPS
Off Grid Survival - Wilderness and urban survival skills
http://offgridsurvival.com/
Backwoods Magazine - Self reliance and self sufficiency
http://www.backwoodshome.com/index.html
Survival Topics - Your online survival kit
http://www.survivaltopics.com/
Wilderness Survival - Free info covering all aspects of survival
http://www.wilderness-survival.net/
Discovery's Worst-Case Scenario Video Clips
http://dsc.discovery.com/videos/worst-case-scenario/
==========
XVI. OTHER
Advanced Yoga Practices - Directory for Main Lessons
http://www.aypsite.com/MainDirectory.html
Creative Live - A live, worldwide creative classroom
http://www.creativelive.com/
======================================================================================
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What are your favorite sites to learn from? What sites would you add to this list?
CONTENTS:
I. Top Picks
II. Universities and Higher Education
III. General Collections
IV. How-to & DIY
V. Studying with Peers
VI. Online Books, eBooks, & Journals
VII. Computers, Software, & Programming
VIII. Science & Math
IX. Logic, Words, & Memory
X. Languages
XI. Music
XII. History
XIII. Business, Finance, & Investing
XIV. Food, Nutrition, & Cooking
XV. Survival Tips
XVI. Other
===========
I. TOP PICKS
Khan Academy
http://www.khanacademy.org/
Academic Earth - Online courses from the world's top scholars
http://academicearth.org/
TED - Technology, Entertainment, & Design
http://www.ted.com/
MIT Open CourseWare
http://ocw.mit.edu/courses/
Stanford Engineering Everywhere
http://see.stanford.edu/see/courses.aspx
Open Yale Courses
http://oyc.yale.edu/
About U. - Collection of free online courses from About.com
http://u.about.com/
Wikiversity
http://en.wikiversity.org/wiki/Wikiversity:Main_Page
YouTube EDU
http://www.youtube.com/education?b=400
The Open University - Study at the OU
http://www3.open.ac.uk/study/
http://openlearn.open.ac.uk/
University of the People
www.uopeople.org
University of Reddit
http://ureddit.com/
Open Culture - The best free cultural & educational media on the web
http://openculture.com/
VideoLectures - Exchange ideas & share knowledge
http://videolectures.net/
CosmoLearning - Free educational website with thousands of courses & documentaries
http://www.cosmolearning.com/
================================
II. UNIVERSITIES & HIGHER EDUCATION
Lecture Fox - Free university lectures
http://lecturefox.com/
More Open Courses:
Open Courseware Consortium
http://www.ocwconsortium.org/
Harvard Extension School - Computer Science & Technology
http://computerscience1.tv/2010/spring/
Johns Hopkins University
http://ocw.jhsph.edu/
Kaplan University
http://ocw.kaplan.edu/
Notre Dame
http://ocw.nd.edu/
Princeton's Institute for Advanced Study
http://video.ias.edu/all
Tufts
http://ocw.tufts.edu/
Utah State
http://ocw.usu.edu/
Google in Education
http://www.google.com/edu/index.html
ArsDigita University - Computer science and math lectures
http://aduni.org/courses/
UC Berkeley Webcast - Central service for online video & audio for learners around the globe
http://webcast.berkeley.edu/
UC Berkeley Video Courses - Free education online
http://education.jimmyr.com/
Capilano University
http://ocw.capilanou.ca/
Carnegie Mellon Open Learning Initiative
http://oli.web.cmu.edu/openlearning/
Delft University of Technology
http://ocw.tudelft.nl/courses/
Rice University Connexions - A place to view and share educational modules
http://cnx.org/
Stanford on iTunes U - Stanford-related digital audio content
http://itunes.stanford.edu/content/overview.html
UC Irvine
http://ocw.uci.edu/
UC San Diego Podcasts
http://podcast.ucsd.edu/
University of Chicago's Mind Online - Thought-provoking samples of critical thinking & debate
http://news.uchicago.edu/multimedia
University of Colorado, Colorado Springs
http://www.uccs.edu/~math/vidarchive.html
University of Massachusetts
http://ocw.umb.edu/
University of Michigan
http://open.umich.edu/education
University of Southern Queensland
http://ocw.usq.edu.au/
University of Sydney - Podcast episodes
http://sydney.edu.au/podcasts/2011.php
University of Virginia - Podcasts & webcasts
http://www.virginia.edu/uvapodcast/
University of Washington - Computer Science & Engineering
http://www.cs.washington.edu/education/course-webs.html
Utah Valley University - Online courses & open educational resources
http://open.uvu.edu/
YouTube Channels:
Stanford
http://www.youtube.com/stanford
UC Berkeley
http://www.youtube.com/user/UCBerkeley
University of New South Wales
http://www.youtube.com/user/UNSWelearning
Yale
http://www.youtube.com/yalecourses
======================
III. GENERAL COLLECTIONS
Free Video Lectures - 800+ Online Courses and 19,000+ Videos from Top 30+ Universities on 35+ Categories
http://freevideolectures.com/
Annotum (formerly Google's Knol)
http://annotum.org/
IncrediCampus - Lectures and preparation/admission advice for college & graduate schools
http://www.incredicampus.com/
Learners TV - Thousands of downloadable video lectures on liberal arts, science, engineering, and more
http://www.learnerstv.com/
Online Education Database - 200 free online classes to learn anything
http://oedb.org/library/beginning-online-learning/200-free-online-classes-to-learn-anything
Infoplease - All the knowledge you need
http://www.infoplease.com/
MERLOT - Multimedia educational resource for learning and online teaching
http://www.merlot.org/merlot/index.htm
Internet Archive
http://www.archive.org/
101 Online Self-improvement Resources
http://www.pickthebrain.com/blog/101-self-improvement-resources/
==============
IV. HOW-TO & DIY
WikiHow - The how-to manual that you can edit
http://www.wikihow.com/
How Stuff Works
http://www.howstuffworks.com/
Wonder How To
http://www.wonderhowto.com/categories/
Instructables
http://www.instructables.com/
Make Magazine
http://www.makezine.com/
How-to Help & Videos for Dummies
http://www.dummies.com/
VideoJug - Get good at life
http://www.videojug.com/
How to Create a Book in Wikipedia
http://en.wikipedia.org/wiki/Help:Books
Let's Make Robots
http://letsmakerobots.com/
====================
V. STUDYING with PEERS
Open Study - Study together
http://openstudy.com/
P2P University - Learn anything with your peers
http://p2pu.org/en/
Study Blue - Your digital backpack
http://www.studyblue.com/
==================================
VI. ONLINE BOOKS, eBOOKS, & JOURNALS
Google Books
http://books.google.com/
WikiBooks - Open-content textbooks collection that anyone can edit
http://en.wikibooks.org/wiki/Main_Page
Project Gutenberg
http://www.gutenberg.org/wiki/Main_Page
Planet eBook - Home of free classic literature
http://www.planetebook.com/about.asp
Open Book Project
http://openbookproject.net/
The Free Library
http://www.thefreelibrary.com/
Many Books - Ad-free eBooks
http://www.manybooks.net/
WorldCat - Collections & services of more than 10,000 libraries worldwide
http://www.worldcat.org/
iBiblio - The public's library and digital archive
http://www.ibiblio.org/
LibriVox - Free public domain audiobooks
http://librivox.org/
The Assayer - Web's largest catalog of books whose authors have made them available for free
http://theassayer.org/
Amazon.com Free eBook Collection
http://www.amazon.com/b/ref=amb_link_85650291_15?ie=UTF8&node=2245146011
Scribd - Reading and publishing evolved
http://www.scribd.com/
Textbook Revolution - Student-run site dedicated to increasing the use of free educational materials
http://www.textbookrevolution.org/index.php/Main_Page
Directory of Open Access Journals
http://www.doaj.org/
eReaderIQ - Recent non-public domain freebies & price-drop alerts
http://www.ereaderiq.com/
Longform - New and classic non-fiction articles curated across the web
http://longform.org/
Flatworld Knowledge - The first and largest publisher of free & open textbooks
http://www.flatworldknowledge.com/
=======================================
VII. COMPUTERS, SOFTWARE, & PROGRAMMING
W3Schools - The world's largest web development site
http://www.w3schools.com/
Google Code University
http://code.google.com/edu/
The New Boston - Step-by-step tutorials for multiple coding languages
http://thenewboston.org/
UDacity - CS 101
http://www.udacity.com/
PHP Academy
http://www.youtube.com/user/phpacademy
Better PHP
http://www.youtube.com/betterphp
NetTuts+ - A large collection of coding tutorials
http://nettuts.com/
Tutorial Guide - The site for all your tutorial needs
http://www.tutorialguide.net/
Codecademy - Fun & interactive way to learn how to code
http://www.codecademy.com/
Free Technology Academy - High quality educational material based on free software & open standards
http://ftacademy.org/
Higher Computing for Everyone - Writing basic programs
http://www.highercomputingforeveryone.com/
HTML 5 Please
http://html5please.us/
Rails for Zombies
http://railsforzombies.org/
Ruby Warrior - Open source game to teach Ruby language
http://www.trybloc.com/courses/ruby-warrior/chapters/beginner#/1
Got API - Documentation search engine
http://start.gotapi.com/
Lynda - Online software training videos
http://www.lynda.com/
Intro to Linux
http://www.reddit.com/r/Ubuntu/comments/bbnkp/ive_tinkered_in_ubuntu_before_but_its_the_primary/c0lzpwk
Stack Overflow - Q&A for professional and enthusiast programmers
http://stackoverflow.com/
DZone - Fresh links for developers
http://www.dzone.com/links/index.html
Photoshop & Graphics:
Tutorial Hero - Photoshop & Flash tutorials
http://www.tutorialhero.com/
PSD Tuts+
http://psd.tutsplus.com/
Photoshop Tutorials
http://photoshoptutorials.ws/
Graphic Tutorials
http://www.graphictutorials.net/
Photoshop Pack Graphic Design Resources
http://www.photoshop-pack.com/
PSD FanExtra Tutorials
http://psd.fanextra.com/category/tutorials/
Vandelay Design - Photoshop Tutorial Hall of Fame
http://vandelaydesign.com/blog/design/photoshop-tutorial-tutorials/
Grokking the GIMP
http://gimp-savvy.com/BOOK/index.html
Video CoPilot - Tutorials for VFx & motion graphics
http://www.videocopilot.net/tutorials/
==================
VIII. SCIENCE & MATH
Scirus - The most comprehensive scientific research tool on the web
http://www.scirus.com/
Cite Seer X - Access scientific and scholarly knowledge
http://citeseerx.ist.psu.edu/
getCited - Academic database, directory, & discussion forum
http://www.getcited.org/
National Science Digital Library - Explore, share, create
http://nsdl.org/
Science Magazine Podcasts
http://www.sciencemag.org/multimedia/podcast/
National Programme on Technology Enhanced Learning - Science, Engineering, & Technology
http://www.nptel.iitm.ac.in/
KQED's Quest - Explore science, nature, and environment stories from Northern California and beyond
http://science.kqed.org/quest/
Freelance Teacher - Videos on physics, chemistry, math, & biology
http://www.freelance-teacher.com/videos.htm
FHSST - Free high school science texts in physical sciences & math
http://fhsst.org/
cK-12 Flexbooks
http://www.ck12.org/flexbook/
Paul's Online Math Notes
http://tutorial.math.lamar.edu/
Reddit's List of Useful Online Math Resources
http://www.reddit.com/r/math/comments/bqbex/lets_list_all_the_useful_free_online_math/
Math, Better Explained
http://betterexplained.com/
Astronomy & Outerspace:
Space Engine - Free space simulation software
http://en.spaceengine.org/
Google Sky
http://www.google.com/sky/
NASA for Students
http://www.nasa.gov/audience/forstudents/index.html
Scale of the Universe - Interactive Flash Animation
http://www.scaleoftheuniverse.com/
Statistics:
Vassar Stats - Concepts and applications of inferential statistics
http://faculty.vassar.edu/lowry/webtext.html
StatSoft Electronic Statistics Textbook
http://www.statsoft.com/textbook/stathome.html
Connexions Collaborative Statistics
http://cnx.org/content/col10522/latest/
Handbook of Biological Statistics
http://udel.edu/~mcdonald/statintro.html
=========================
IX. LOGIC, WORDS, & MEMORY
Mind Tools - Memory improvement techniques
http://www.mindtools.com/memory.html
The Nizkor Project - List of logical fallacies
http://www.nizkor.org/features/fallacies/index.html
Wikipedia's List of Logical Fallacies
http://en.wikipedia.org/wiki/List_of_fallacies
Wikipedia's List of Figures of Speech
http://en.wikipedia.org/wiki/Figure_of_speech
Tool Kit for Rhetorical Analysis
http://grammar.about.com/od/rhetorictoolkit/Tool_Kit_for_Rhetorical_Analysis.htm
KnoWord - Expand your vocabulary
http://knoword.org/
Vocabulary.com - Learn new words & explore language
http://www.vocabulary.com/
Brain Workshop - A Dual N-Back Game
http://brainworkshop.sourceforge.net/
Argument Mapping Tutorials
http://austhink.com/reason/tutorials/
Philosophy Bites - Podcasts of top philsophers
http://www.philosophybites.com/
=============
X. LANGUAGES
Basic Composition - Reading & Writing
http://www.basiccomposition.com/
BBC Languages - Beginner courses in multiple languages
http://www.bbc.co.uk/languages/
Foreign Service Institute Language Courses
http://fsi-language-courses.org/Content.php
Language Guide - Foreign language vocabulary, grammar, & readings
http://www.languageguide.org/
eLanguage School - Free foreign language lessons online
http://www.elanguageschool.net/
Free Online Language Courses via About.com
http://distancelearn.about.com/od/onlinecourses/a/freelanguage.htm
DuoLingo - Learn a language for free & simultaneously translate the web
http://duolingo.com/
Babel Nation - Learning languages online for free
http://www.babelnation.com/
Transparent Language - Language learning software & resources in over 100 languages
http://www.transparent.com/language-resources/languages.html
Survival Phrases - Learn essential travel phrases, tips, and insights
http://survivalphrases.com/
Talk to Me in Korean
http://talktomeinkorean.com/
Chinese Toolbox - Software for learning Chinese through reading
http://www.chinesetoolbox.com/
LiveMocha - World's largest language learning community
http://www.livemocha.com/
American Sign Language (ASL) University
http://www.lifeprint.com/asl101/lessons/lesson01.htm
Handspeak - Sign language
http://www.handspeak.com/
Signing Savvy - Your sign language resource
http://www.signingsavvy.com/index.php
========
XI. MUSIC
Music Theory - Lessons, exercises, & tools
http://www.musictheory.net/
Ear Training & Music Theory Software
http://www.trainear.com/
Basic Music Theory
http://www.howmusicworks.org/
About.com Music Education - Music theory
http://musiced.about.com/od/musictheory/u/musiced_musictheory.htm
Teoria - Music Theory Web
http://teoria.com/
Ultimate Guitar - Lessons, techniques, & styles
http://www.ultimate-guitar.com/lessons/
Justin Guitar - The best guitar instruction on the web
http://www.justinguitar.com/
Chorder - Chord fingering and guitar resources
http://www.chorder.com/guitar-chords/
Funk University - Assembly of Music's Finest
http://www.thefunkuniversity.com/
Play Bass Now - Lessons, licks, and low notes
http://playbassnow.com/
How to Play Piano
http://www.howtoplaypiano.ca/
===========
XII. HISTORY
Teacher Resources - Western Civilization (52 half-hour video programs)
http://www.learner.org/resources/series58.html
Metropolitan Museum of Art - Timeline of Art History
http://www.metmuseum.org/toah/
===============================
XIII. BUSINESS, FINANCE, & INVESTING
Investopedia
http://www.investopedia.com/
Google Advisor
https://www.google.com/advisor/home
Google Finance
http://www.google.com/finance
MarketWatch by WSJ
http://www.marketwatch.com/
Main Street - Business & financial headlines & advice
http://www.mainstreet.com/
============================
XIV. FOOD, NUTRITION, & COOKING
Good Eats Fan Page
http://www.goodeatsfanpage.com/GEFP/index.htm
Jamie's Home Cooking Skills
http://www.jamieshomecookingskills.com/
Chef Todd Mohr's Web Cooking Classes (YouTube)
http://www.youtube.com/user/ChefToddMohr
Nutrition Data - Self nutrition data; know what you eat
http://www.nutritiondata.com/
Nutrition.gov - Smart nutrition & practical tips
http://www.nutrition.gov/
Choose My Plate via USDA
http://www.choosemyplate.gov/
The World's Healthiest Foods
http://whfoods.org/foodstoc.php
Calorie King
http://www.calorieking.com/
Start Making Choices - Simple ideas for living healthier on a budget
http://www.startmakingchoices.com/index.jsp
Eat Right Nutrition Tips
http://www.eatright.org/Public/content.aspx?id=206
Culinary Arts Courses (Top Online Culinary Arts and Cooking Courses)
================
XV. SURVIVAL TIPS
Off Grid Survival - Wilderness and urban survival skills
http://offgridsurvival.com/
Backwoods Magazine - Self reliance and self sufficiency
http://www.backwoodshome.com/index.html
Survival Topics - Your online survival kit
http://www.survivaltopics.com/
Wilderness Survival - Free info covering all aspects of survival
http://www.wilderness-survival.net/
Discovery's Worst-Case Scenario Video Clips
http://dsc.discovery.com/videos/worst-case-scenario/
==========
XVI. OTHER
Advanced Yoga Practices - Directory for Main Lessons
http://www.aypsite.com/MainDirectory.html
Creative Live - A live, worldwide creative classroom
http://www.creativelive.com/
======================================================================================
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Why the 3000 most common English words?
https://basicenglishspeaking.com/3000-most-common-words/
When it comes to learning English, vocabulary is probably the most important thing. Without words, you cannot read, hear, speak, or write. However, have you ever asked yourself:
“How many words do I need to learn to become fluent in English?”
Let's take a look at the dictionary, you will find that there are about 470,000 different words in English. If you learn 20 words a day, it will take you...60 years to learn them all!
OMG!
Fortunately, you don't have to learn them all to become fluent in English. Americans use around 2500 – 3000 of the most common words in their daily lives. If you know these 3000 most common words, you can understand at least 95% of all conversations, e-mails, newspapers, and books.
Sounds great! But what is the most effective way to learn these words?
