Facebook bought Instagram way back in 2012, but you almost wouldn't know it from how separate they are. Outside of Instagram's options to log in with and post to Facebook, you almost wouldn't know the two entities are connected. However, that's changing in a big way... for the corporate crowd, at least. Facebook is launching a unified Pages Manager inbox that lets businesses see and reply to their Facebook, Messenger and Instagram interactions in one place. If you complain about a faulty product in an Instagram comment, you're just as likely to be answered as if you'd sent a scathing Facebook message.