Tuio - Tuio is a billing and payment application that allow daycare centers and pre-schools to centralize and manage all parent billing and payment in one place.
SocialEngine - Socialengine PHP: Elevating Your Online Community Experience.
GoPad for Schools - School Management
phpFox - phpFox is a powerful social network platform for niche communities
Sawyer - Discover a wonder-filled world of kids classes, camps, events, and activities, right in your neighborhood
BuddyPress - WordPress social networking in a box.