ok. bots. a "bot" is a program that automaticly loads into a webpage, thus boosting page views. bots can be scripted to do all kinds of things, like create a new IP before it logs in. etc etc.
the point is though, its a program, and usually leaves a pattern of some kind. what kind of pattern i dont know. also, usually a dead give away, is ten thousand views on a piece of crap.
i am sure the admins have a fair system to weed out the fake views.