So going from 0 (because we were new) to 6 is pretty huge - but we've had a lot of good websites pick up our stories and some good press which has helped a lot. The future pagerank predictor says we will have a 7 in the next update.
To put things in perspective MAKE, who is a billion times bigger than us has a pagerank 7. They have linked to us a lot, so that definately boosted us up.
To celebrate I'm buying everyone a Henry Weinhard's. Meet me by the flag pole at 08:00.