Membership Management Programs?
 

What do you guys use for membership management? Any of you use open-source software?

i one saw 99 bucks script which is meant for member management and for membership sites.

Are you looking for software to build and manage a membership site? If so take a look at Elevated X - http://www.elevatedx.com

If you're looking for management of the actual member database and billing aspects, this is usually handled in conjunction with your billing and payment setup.