Daniel Not sure how much I like Clacanis, he seems good to read with all his posts and all but has an off attitude. Seems like he has a great idea here and it'll work, I really do like unique sites - Hope to see how it comes out. It could do well or be a failure.
Niche social networks are the best way to start a new social network, as it's impossible to compete against the bigger networks like Myspace and Facebook.