Basically, par being an active member of a club and contributing things which others like: 1. Getting the links, articles, images and vidéos you've added fanned 2. Answering lots of questions, votes etc. 3. It's easier to get médailles in plus active clubs than dormant ones.
I don't think there's a set number of fans ou contributions. The system's pretty random. Sometimes it doesn't really make sense.
