
There are groups to be involved in and the more active you are within the groups and blogs, you earn points. I like that it holds me responsible to being active. The more active you are, the more points you get. I think that's a great premise for someone who is competitive with others or themselves. The point is to get your blog more active, which helps with content building and key to SEO.
You will also find a list of events by state and blog entries about those events. It appears to be pretty extensive.