>>antina+(OP)
So to recap, Twitter exploded onto the scene in 2007, the "fail whale" appeared a lot, developers made all sorts of wonderful programs hooked into Twitter, the fail whale disappeared, Twitter started to destroy the app ecosystem, App.net launched to great fanfare in response to Twitter's knuckleheaded anti-developer stance, Britney Spears and Justin Bieber arrived and knocked all the nerds out of the top spots on Twitterholic, Donald Trump came and bludgeoned everyone with his bombastic prose, and now App.net is shutting down.
And after all this, Twitter still does not have a viable business model.