I have a facebook group called 'Black women are taller' How do i get more people to join it?

[BILL]

http://www.facebook.com/s.php?init=q&q=b...9283037746
This group is for tall black women that are like 6 foot + and for men who love tall black women. I only have 14 members and no one have even wrote on the wall yet and i had the group for like 3 month. I more photos upload,like a picture of a tall black woman standing by a short white woman, just think of tall black women that plays in the WNBA.
I need more photos and videos,things for the group, How do i get more people to join?