1 - Code Year - If learning computer programming sounds way out of your reach, best left to the geniuses of the world, you're wrong. According to Code Year, anyone can learn the basics of computer programming in just one year.
2 - W3Schools - The largest site on the Internet for Web developers, W3Schools is a fantastic resource for those interested in brushing up on their Web development skills—or learning them for the first time.
3 - TED - We're guessing most of you have seen at least one TED Talk by now. The nonprofit started out as a conference in 1984 with the intention of "bringing together people from three worlds: Technology, Entertainment, Design."
4 - Massachusetts Institute of Technology - Brush up on your college-level writing and reading skills without paying an exorbitant amount.
5 - iTunes U - iTunes U hosts content from more than 800 universities and distinguished organizations. Stanford, Yale, and Oxford are on the list, as well as MoMA, the New York Public Library, Public Radio International, and PBS stations.
6 - Khan Academy - Sal Khan, former hedge fund analyst and creator of the nonprofit Khan Academy, has made over 2,700 free educational videos and aims to continue until the day he dies.
7 - Peer 2 Peer University - Peer 2 Peer University, otherwise known as P2PU, is a grassroots open education project. Creating a "model for lifelong learning alongside traditional formal higher education," P2PU uses the Internet to make educational materials openly available for free.
8 - University of the People - Affiliated with the United Nation's Global Alliance for Information and Communication Technology and Development, the Clinton Global Initiative, and the Yale Law School Information Society Project, University of the People is the world's first tuition-free, non-profit, online academic institution
9 - Academic Earth - Academic Earth, an online video education site, offers courses and lectures from Yale, Harvard, Stanford, MIT, UC Berkeley, and Princeton in a user-friendly platform.
10 - CK-12 - Intended for kindergarteners through twelfth graders, CK-12 is a non-profit organization whose mission is to reduce the cost of textbook material in the K-12 market.
Via Peter John Baskerville