Mother forgive me (she pays my credit card bill), but I joined two organizations today as a paying, card carrying member.  I've long been wanting to do this and finally got around to it, I began a student member of Amnesty International Canada and the Jane Goodall Institute (a chimpanzee conservation organization).  This was on top of my previous joining of Center for Inquiry:  Ontario earlier last month.  My total bill for organizations is... pretty high.  But at least I'm donating money into things I believe in now.  I'm also a member of the Skeptic Society (also paid from last year) and Society of Ontario Freethinkers (free for students), and yes this entire entry was about shameless advertisement of the groups I support.

EDIT:  (Let's not forget my presidency of the Mohammed Drawing Association and the membership of The Church of Google.)