Jon Haarstad had a great post on his blog about the Google page ranking system. The mysterious ways of page ranking are really not that mysterious as you'll see here...the Google geeks have a rational for it all. If you really want to get in depth on this topic, follow the links on Jon's blog and you'll get all kinds of fun calculations, charts, and formulas (and by fun I mean "fun" for the kind of people who know things like the numerical value of Pi beyond the traditional 3.14). If you're not into that just know it all seems to boil down to this...links. When you get linked to your page rank goes up. If you aren't linked to, your page rank will stay down.