Digging A Hole: Web 2.0 Poster Child Jumps The Shark?

(Click on the graph and add del.icio.us in one of the comparison boxes at bottom.)

My take: These properties were initially both communities and technology demonstration projects.  Now that curious folks are moving on to other properties where these features are deployed in support of other interests, we're winnowing back down to the core folks who came for the community in the first place.  Bigger picture:  the Web 2.0 bubble is passing, and the core ideas are increasingly just "part of the furniture"  in lots of other places.  2007 MBA's take note...