Director of Community Heather Champ doesn't just guard the pool and blow the occasional whistle; it's a far more delicate, and revealing, dance that keeps the user population here happy, healthy and growing. In addressing that question of how much to police and how much to let things be, Champ oversees an experiment that, outside some far-flung and sandy exceptions, one rarely sees in such detail. There are no IEDs or snipers in this place, but it's hard not to conclude Flickr's conducting a kind of nation-building.
Flickr is an inspiring example of how to run a community site in an era where other sites almost delight in taking zero responsibility for what goes on in their comments and forums.