I don't really know what Instagram is really worth, but it might have been worth a billion dollars to Facebook to keep Instagram away from Twitter. Twitter + In

I don't really know what Instagram is really worth, but it might have been worth a billion dollars to Facebook to keep Instagram away from Twitter. Twitter + Instagram is starting to look like a viable Facebook competitor. Although we know now that Twitter is choosing to become a walled garden with a very limited kind of service, a year ago it seemed possible for them to become a sort of internet infrastructure.