ZOOOF! sounds like an excited German Shepherd.

The following is a paid entry.

ZOOOF is an international family networking site that is currently in beta. ZOOOF, The Family Network allows users to invite family members, build a family tree, share family stories, and more. It's basically a wiki for family history that relatives all over the world can help build and maintain. You currently need an invitation to join, but simply e-mail your name, e-mail addie, country and gender to invite AT zooof DOT com to receive an invitation. The beta stage will end on Valentine's day (February 14th), and then it will be open to everybody. Sounds pretty neat.