Not sure about that myself. I think over time as any class of service matures and becomes widely used the waining fad effect becomes longer. Early social networ

Not sure about that myself. I think over time as any class of service matures and becomes widely used the waining fad effect becomes longer. Early social networking sites were small and died off easily. Myspace was larger and is dying a slow death (still a top 20 site) Facebook is even larger and still growing. I do think going forward people will interact with it less directly. Going to Facebook.com may be old fashion in 5 years but I suspect they'll still be the clogs behind the scene making the machine work.