This article over at The Register is well worth the read, although I can't put my finger exactly on why.
It's an opinion piece by William Davies, a sociologist, about the application of economic theory onto the internet, specifically how the theories of a guy called Gary Becker relate to Web 2.0.
I realise that it sounds, from that description, very dry and boring, but in actuality it raises an interesting point about the flash-in-the-pan nature of internet trends and how that affects the impact of consumer-created content that's the flagship of modern internet business.
(Also, I know my post titles are getting less original - I'm resorting to stealing the title of the article I'm linking to - but it's better than having a bunch without titles.)