Facebook isn’t necessarily the new Compuserve, and Google might not be angling to be the Hotel California of tech, but all of the big web giants seem intent on locking their users into experiencing a single-vendor web.
Facebook riled users this week by throttling their ability to export their Facebook friends’ data for use with Google+ or other services, while Google dumped Twitter from its realtime search in favor of its own Google+. The web as an intersection of seemingly infinite networks threatens to become a limited patchwork of monopolized web experiences that only grudgingly talk with each other.

More: Facebook, Google, and the war to lock you in – The Register.