I've been waiting for someone to integrate attention stream data with a more general social networking service. I'm really curious how it will work out. Check out Slifeshare.

Tracking browser behavior is a curious thing. A while back, during my days with Microsoft.com, I met with a couple of the folks behind the Attention Trust organization. At that time, I had the opportunity to examine someone else's browsing history (with their permission, of course). It was astonishing how much crap there was in the mix.

To its credit Slifeshare seems to have added features to mitigate much of the noise. You can filter sites, and go into private mode.

I've joined, but I have no Slifeshare acquaintances, so at the moment, there's not much point.

To it's embarrassment, Slifeshare only ships with support for the Mac, and the Firefox browser -- unless I missed something. I haven't yet read their blog, so I don't know if this is just some sort of retro MS bigotry, or a curious take on business strategy. I'm willing to believe there's an inordinate percentage of FF and Mac users among early adopters than is the case generally, but I don't believe they're in the majority. If anyone has data that says otherwise, I'm ready to stand corrected.