No, quit thinking backwards. A new form of social networking will be championed by the young and early adapters, soon enough. I'm not going to suggest what is next, but I know it won't have annoying profile pages where users can list endless and pointless information about favorite TV shows, movies, books, etc. I have noticed that a lot of people have stopped filling in static profile data, or greatly shortened what they had - Gen-y moves fast and is too dynamic to be labeled/pigeonholed with static data.

Another idea that I have for the future of social networking is that it will open up again, or become less private. The problem with facebook is that it has become a glorified rolodex where you can list and keep track of everyone you know, but you don't find or meet anyone new, anymore, because everyone has private profiles. Thus, the only people you friend are old classmates, relatives, or people you meet in the "real-world". It used to be the opposite, I used to friend new people all the time by searching networks with like interests or by stumbling onto people through friends of friends. People will either need to loosen up, or use virtual aliases so that people can actually network and find other like-minded friends on "social" networks, again.