One of the things I remember reading about, early on in my enterprise 2.0/ social business journey was Andrew Mcafee's definition of what makes social software tick. He spoke of three characteristics - emergent, freeform and frictionless. Those definitions still ring true in my head. As I look at how enterprise social software matures it seems to be moving away from those characteristics quite a bit. To the extent, that enterprise social software loses the edge it promised to provide.