Yesterday, Twitter cut Instagram’s API access that had allowed Instagram users to easily connect to the people they followed on Twitter on the photography network. Dan Frommer suggests it was payback for Instagram’s soon-to-be owner Facebook for blocking Twitter’s ability to let its users look up their Facebook friend on Twitter.
Users’ social graphs are valuable to social networks. Allowing users to find their friends on other services benefits the users, but it also benefits social networks by making them somewhat of a canonical list of your Internet friends. But when one network grows large enough to challenge another network, the interest changes to preventing users from moving easily to the new service.
Now here’s where I make a wild speculation there might not be evidence for: do these moves actually cede power to Apple? Maybe Apple, which has shown its social-network ineptitude, doesn’t care. But Apple’s iOS 6 (and, I believe, a future OS X Mountain Lion update) integrates Facebook, Twitter and contacts, making it, perhaps the way millions of iPad, iPhone, iPod Touch and Mac users move between and integrate the two services.