Dvoraks view is harsh, sharp, and controversial, as always. The third AOL or the second Second Life, it doesn't really matter. In the end FB will lose its hipness, like a boring skating rink in the suburbs or the local strip mall, minus the convenience advantage since fast, high-quality specialized services are just milliseconds away. This blog does not share Dvorak's view that FB is a ghetto of the technologically challenged, it simply a brilliantly executed amalgam of the current zeitgeist, and as such it will fade, taking the social graph and its sinister monetization with it.
The comments of the article are well word a read.