What can I do in my community?

The great movement underway in hundreds of communities round the world right now is Transition Towns

http://www.transitiontowns.org/

http://transitionculture.org/2008/11/26/the-transitioning-of-second-life-by-katy-duke/
Community teams to improve the local environment

There’s a lot of interest in reducing reliance on the money system.
http://www.letslinkuk.net/

Kiva microloans

and credit unions