Would be nice to closely integrate with social networking, would love to be able to quickly post across news, etc. and get community involved.
I've been working with DJango recently and its a really wonderful framework for writing websites, maybe I can take a redesign of the site on-board as an educational project?
One word of warning on facebook and this is agnostic to this particular; privacy! Before joining any groups:
Click "Account", then privacy settings and set it to "Friends Only" or "Custom" (I use the latter). On top of this, I would recommend clicking "View Settings" under "Connecting on Facebook". Here you can hide your friend's lists, etc.
If you don't do this, any networks, google, etc. can get at your details. This is important if you add a lot of apps to your facebook.
I also filter my family, co-workers, etc. as well, just so I don't offend anyone with the wall posts