Members are committed players who contribute money as well as time to support the club. They will grow the game, grow the club, and make it more fun for everyone by providing a budget for basics like calling cards, printed brochures and flyers, office supplies, website costs, maybe even a trophy or two throughout the year.
If you haven't already, please take a quick look at the Organization section of the About the Club page. It describes the proposed participation levels and gives some motivation for why you might want to become a member of the club and contribute financially.
Below are the proposed membership levels. This should be discussed and voted on, but I find it's always better to start with a concrete proposal when trying something new.