UC Atlas of Global Inequity
The Atlas of Global Inequality explores some aspects of inequality using online, downloadable maps and graphics. All these materials can be used freely providing they are attributed to the UC Atlas of Global Inequality.
SFSU Office of Community Service Learning
Provides SFSU undergraduates the opportunity to take a community service learning course before graduation. http://www.sfsu.edu/~ocsl/
Idealist.org
Thousands of volunteer opportunities with nonprofit organizations in your community and around the world, and a list of organizations that can help you volunteer abroad. http://www.idealist.org/