Joining the Crow Institute allows you to vote in elections and become involved in goverance of the institute. There are two kinds of membership.
Rolling membership is open to anybody with a UW-Madison appointment. Membership needs to be renewed annually.
Continuing membership is for "permament" faculty or staff, and does not need to be renewed annually. Continuing membership is granted by the Institute's Executive Committee (this has already be granted to most faculty and staff listed on the people pages). To request continuous membership complete the online form and then send a brief paragraph explaining your connection to evolutionary research to Nicole Perna.
Remember: You don't need to be a member to join the email list (and becoming a member does not automatically put you on the mailing list)