HBS Working Knowledge has an interview with Siobh‡n O'Mahony who discusses her research on foundations formed around three projects: Debian, GNOME and Apache. Some excerpts:
The hacker culture prizes autonomy and self-determination. Eric Raymond defines hackers as those who love programming for the sake of doing it, for the sake of obsessively solving a problem. Thus, hackers who contribute to the open source community are often intrinsically motivated.
I'm actually not sure that the hacker culture prizes this at all. I think this is put forth by certain people as something that it prizes, but really, i've not seen any proof that it does, and looking around hackers seems happiest when they are working with others on something….. independent projects seem to come together….