Jimmy Wales is asked, in Time Magazine’s “10 Questions” section, why people contribute to Wikipedia. Is it altruism? He replies:
It’s realizing that doing intellectual things socially is a lot of fun—it makes sense. We don’t plan on paying people, either, to contribute. People don’t ask, “Gosh, why are all these people playing basketball for fun? Some people get paid a lot of money to do that.”
Bang on. Also, please stop asking me if I make any money through this website. Bounce bounce bounce.