How the Wikipedia Scanner Works

If you've ever used the online encyclopedia Wikipedia, you might have noticed that editing an article is as easy as clicking the "edit this page" tab, making your changes and clicking "save." But it's this ease of editing that's both Wikipedia's greatest strength and its weakness: Anyone can edit Wikipedia -- even anonymously.

Despite all of these tools, Wikipedians can't be everywhere. With… » Full Story on HowStuffWorks