I'm not entirely sure, but I have my blog listed at BlogHer and I use them for my ads. I know they are an on-line community for women bloggers and they support blogs written by women, but I don't know how the blogs they have directly on their site come to be. Since I'm part of their network, they put a link to my blog in a rotation that appears in a short list on other BlogHer blogs, in one of the advertising spaces. I get some page views through that. I haven't gotten involved in the community there, but want to poke around there some. Just haven't had the time, you know?