Vote for the Best Online Education Site in the 2013 Readers' Choice Awards.
Voting runs through March 19, and winners will be announced March 27. There are no prizes except bragging rights, but in this online world, that counts for a lot! To learn more about the awards, visit awards.about.com.

Comments
A national pioneer in adult education, Excelsior offers online technology degrees designed specifically for working adults. Our flexible model enables you to earn a career-building technology degree without disrupting your work and family responsibilities.
Coursera.org is a phenomenal online education site–by far the best I have experienced. Udacity is missing from the roster, too.