Pro users want access to a social network that has gotten huge because it's free. The pro users are nervous because free=fragile. This brings to mind Fred Wils

Pro users want access to a social network that has gotten huge because it's free. The pro users are nervous because free=fragile. This brings to mind Fred Wilson's recent call for content shifting tools (http://www.avc.com/a_vc/2011/01/content-shifting.html http://www.avc.com/a_vc/2011/01/content-shifting.html, http://news.ycombinator.com/item?id=2085455 http://news.ycombinator.com/item?id=2085455).