While Geoff was home for the Independence Day holiday he was telling me about the San Jose Bike Party. I like their motto. In two years they have grown from about 40 to over 1500 at the last ride. This Saturday they're having a Bike Party Scallywag Scavenger Hunt.
As another cyclist commented to me, why bother with having meetings for a year, getting insurance, paying for police, designing and buying t-shirts, etc., to have an organized ride when you can get a bunch of people to come out anyway?