Can you share some pointers? E.g. a page giving an overview of BSD, GPLv2, GPLv3, LGPL, the Creative Commons bunch (no idea if they are usable for source code)

Can you share some pointers? E.g. a page giving an overview of BSD, GPLv2, GPLv3, LGPL, the Creative Commons bunch (no idea if they are usable for source code). Basically I'm wondering if there's a "Intro to licensing your crap on github" post somewhere on the net...