Yes, it's you. A decade from now, YouTube, Facebook, Twitter, or whatever comes after it, will be flooded with millions and millions of more profiles, videos, tweets and tunes. Things will be radically different, and the web which binds us all together will have become much more massive. Slowly but surely, the things you have done now (that clever status update that got 500 likes?) will haved faded into oblivion. We are still at the frontier of social media's rise, so enjoy it. That is, until the next thing comes along.