Sourceforge is to GitHub as Friendster is to Facebook. Yes, they are kinda the same idea, but GitHub realized that the social element was key, and managed to c

Sourceforge is to GitHub as Friendster is to Facebook. Yes, they are kinda the same idea, but GitHub realized that the social element was key, and managed to create a community around open source the way that sourceforge never did (and, I would argue, didn't even know to do).