Seth points to this article, an excellent look at a new resources and how we handle them.
"And this is the other thing about the size of the cognitive surplus we're talking about. It's so large that even a small change could have huge ramifications. Let's say that everything stays 99 percent the same, that people watch 99 percent as much television as they used to, but 1 percent of that is carved out for producing and for sharing. The Internet-connected population watches roughly a trillion hours of TV a year... One per cent of that is 100 Wikipedia projects [the whole of Wikipedia] per year worth of participation.
I think that's going to be a big deal. Don't you?"