Preface

Facebook is big, by all meanings of the word. It's used by half a billion people—and countless businesses, bands, and public figures—for socializing and self-promotion. It's also a huge development platform, with tens of thousands of applications.

It's now common to see a Facebook "Like" button on blog posts, news articles, and many other websites. In the same way, Facebook integration is becoming more and more desirable for browser-based RIAs and games, with some, like FarmVille, even being based entirely around Facebook. That's where Flash comes in.