Zumbara is an internet community time-banking system. In this system no money is exchanged, only talents and experiences are shared in return for time.
This is only one such time banking system currently happening all over the world with local time banks being the most common. Ranging from 10 to over 100 members, Time Banks are started to help strengthen communities and neighborhoods.
Zumbara though, is combining the time bank idea and social networking technologies to strengthen larger communities like an entire country! The hope though, is that it can eventually help the global community.
See the links below to learn more about Zumbara and Time Banking: