Author Clay Shirky gave a speech at the Web 2.0 conference, April 23, 2008, that touched on his idea of the social surplus – the vast quantity of people’s time that is being freed up to do user-generated media, Wikipedia and other useful things as they move their attention from television to the Internet

Along the way, Shirky explained why user-generated media is better than Gilligan’s Island:

If you take Wikipedia as a kind of unit, all of Wikipedia, the whole project–every page, every edit, every talk page, every line of code, in every language that Wikipedia exists in–that represents something like the cumulation of 100 million hours of human thought. I worked this out with Martin Wattenberg at IBM; it’s a back-of-the-envelope calculation, but it’s the right order of magnitude, about 100 million hours of thought.

And television watching? Two hundred billion hours, in the U.S. alone, every year. Put another way, now that we have a unit, that’s 2,000 Wikipedia projects a year spent watching television. Or put still another way, in the U.S., we spend 100 million hours every weekend, just watching the ads. This is a pretty big surplus

Did you ever see that episode of Gilligan’s Island where they almost get off the island and then Gilligan messes up and then they don’t? I saw that one. I saw that one a lot when I was growing up. And every half-hour that I watched that was a half an hour I wasn’t posting at my blog or editing Wikipedia or contributing to a mailing list.

Now I had an ironclad excuse for not doing those things, which is none of those things existed then. I was forced into the channel of media the way it was because it was the only option. Now it’s not, and that’s the big surprise. However lousy it is to sit in your basement and pretend to be an elf, I can tell you from personal experience it’s worse to sit in your basement and try to figure if Ginger or Mary Ann is cuter.

The answer is obviously Mary Ann.

Now that we have that cleared up, check out Shirky’s full speech at his Here Comes Everybody site. It’s an interesting read and it articulates why podcasting and other indie content is going to continue to grow at an incredible rate.