I'd be willing to contribute, I know a little Java, but would love to learn more, or expand into other languages
I'll keep an eye on the topic, and wrack my brain for a few ideas too.
(I'm 16, youngest member on team? =D )
I'm also 16

What about a programming workshop, the idea is you make poll and people vote on a language they want to learn, then recommend a book and everyone works thought it, 1 or 2 chapters a week and if they get stuck they can ask for help for a particular chapter and the wise owls make up exercises to.
Heres a c++ that was done - http://www.gamedev.net/community/forums/forum.asp?forum_id=76
Just an idea..
Great idea, however problem is price of the books, money involved etc etc. If stuff can be found online in the same sort of chapter form it sounds wonderful, everyone can go at their own pace sortof and that.