For your brain.

Videos and Lectures

• KhanAcademy.org
• www.academicearth.org
• TED.com
• UnplugTheTV.com

Learn New Things

• FuckingHomepage.com
• IfEveryoneKnew.com
• Duolingo
• Coursera
• oyc.yale.edu 
• www.mentalfloss.com 
• www.brainpickings.org
• www.edge.org
• Stackexchange 
• instructables.com
• howstuffworks.com

Testing Knowledge

• FreeRice.com
• LizardPoint.com
• MathRun.net
• Wolfram|Alpha

Teach Yourself Something

• OpenCulture.com
• NoExcuseList.com
• projecteuler.net
• udacity.com
• MIT Open Courses 
• Stanford's Free Course Website
• codingbat.com
• codecademy.com 
• busuu.com 
• livemocha.com 
• lynda.com

Youtube Channels

• SciShow
• CrashCourse
• MinutePhysics
• TEDEducation
• spacerip
• spacelab

Link Aggregators

• Arts & Letters Daily
• Longform.org

Science Related

• SixtySymbols 
• PeriodicVideos
• Engineeringguyvideo
• 1veritasium  

Podcasts

• RadioLab
• Stuff You Should Know
• Thinking Allowed 
• In Our Time with Melvyn Bragg 
• 99% Invisible 
• Selected Shorts

Other Stuff

• Erowid.org
• CrashCourse
• Vlogbrothers
• CGPgrey
• deoxy.org

Subreddits

• r/DepthHub
• r/explainlikeimfive
• r/RedditGuides
• r/TrueReddit