Clickable: http://beta.whatispolymath.com.

Curation is huge, especially as the number of available resources continues to increase. In the past few months I've either used or thought about using:

http://teamtreehouse.com

http://www.udemy.com/

http://www.udacity.com/

http://www.lynda.com/

http://www.cs101-class.org/hub.php

http://www.codecademy.com/

http://tutsplus.com/

Edit: Forgot http://www.codeschool.com/

...and probably half a dozen more that I can't think of off the top of my head.

I've just been using a google doc to stay organized, but this looks like it would work a lot better, and I would love to see some comparisons between equivalent courses on different sites.