Isn't every social network out there a counter to #1? e.g. Facebook, Twitter
Both are Apps, and both allow you to write code against them (or maybe Twitter doesn't count because it doesn't run on their site?)
Both are Apps, and both allow you to write code against them (or maybe Twitter doesn't count because it doesn't run on their site?)
Facebook did not add an API until much later and "being a platform" did not become a priority until recently.