Brilliant video here from Derek Sivers, who discusses with real insight what would otherwise have just been an amusing video of a guy dancing.
This makes me think a couple of disparate thoughts:
1. Nurture your early community members: They are the ones who will bring in new people to your community.
2. That explains why the early social media leaders are mainly now eclipsed by followers: later followers don't follow the leaders, they follow the early followers. That says something strange about human nature, but I'm not quite sure what!
Hat tip to Johnnie Moore.