With his placement by Time Magazine as 2010’s Person of the Year, it should be no surprise to find Mark Zuckerberg at the top of the list. Any site that boasts over 500 million users, as Facebook does, is going to be highly influential, and as Founder and CEO of Facebook, much of that influence falls to Zuckerberg. Every time Facebook makes a move, the web is abuzz and bloggers are sure to talk about it. That’s influence.