The Joy of Open Source
It's well known that lots of big companies are using open source; but do they really get all this communal effort, contributing back to the pool stuff? Not according to this interesting report, which finds that most of the heavy coding is still done by the passionate solo programmers.
I can't say I'm surprised: as I found when I interviewed most of the top open source hackers for Rebel Code, at the heart of what they do is joy - no other word for it. And joy is not something you bang your shin against much in mega-corporations.