Beanbag Learning
Take a look at beanbaglearning.com.
Beanbag Learning – Beanbag was the first Jiva product and provides a matching service for parents and private tutors.
Built using the Hobo framework for Ruby on Rails and incorporating recommendations, search by location, resource management and social networking elements like profiles and friendships it has inspired, either directly or indirectly, most of the other projects we are currently working on.