Hi Dreeves, here's a partial list of the projects we've seen:

ONLINE VIDEO LECTURES

Let's Code Test Driven JavaScript: http://www.letscodejavascript.com/

One Month Rails: https://onemonthrails.com/

Learnable: https://learnable.com/

Code School: http://www.codeschool.com/

Treehouse: http://teamtreehouse.com/

CodeHS: http://codehs.com/ - "Computer science class in a box" for k-12 schools

Learn Street: http://www.learnstreet.com/

CODE CHALLENGES

Top Coders: http://www.topcoder.com/

Hacker Rank: https://www.hackerrank.com/

Interview Street: https://www.interviewstreet.com/

OTHER

CodeCombat: http://codecombat.com - online game that teaches Javascript

Codecademy: http://codecademy.com/

CodeAvengers: http://www.codeavengers.com/ - Pay-per-module coding game

Hakitzu: http://www.kuatostudios.com/games/hakitzu/ - Paid iPad game that teaches coding

Kodable: http://www.surfscore.com/ - iPad game that teaches coding

Full disclosure, I run CodeCombat.

There are dozens upon dozens of other not-for-profits and pre-monetization projects out there, but this list covers most of the major players.