But you bring up a larger question about the social graph, and it’s my understanding that FB is working on exactly this. If they want their “walled garden” to work, they have to figure out a way to keep the walls up. I know that groups was a step in this direction; and I’m pretty sure they’re on to the next step as well.

I think that the privacy settings and ability to publicize inside jokes that are still “inside” maintains a level of coolness and exclusivity that our age group desires.

My friends and I purposely don’t friend co-workers, adults, parents, etc… because we don’t want them to be let into our world. I know as a professional that a time will come when I’m going to have to “clean it up,” but the thought of that day makes me sad as thousands of tagged photos, wall posts and other communications give me a virtual scrapbook of my fun days in college.

I don’t think facebook is going anywhere, nor will anything come along that can fill its place. I see people that desire this great exclusivity gravitating towards more niche types of networks (dog lover, fashion enthusiasts, etc…). But only time will tell!