Encyclopedia of British charitable organizations in 27 categories in a fully searchable database.

Searchable database of United States nonprofits. Website also features donation guide, procedures by which organizations can be listed.

Searchable directory of UK charities. Charities listed by type, discussion forum and donation by click.

An online "village" that unites donors, volunteers, businesses, and qualified charities from across the nation.

Portal for researching non-profit groups in the US; includes links to news and ratings sites, venture philanthropy information, and gateway to search the IRS database.

A directory site for people who want to contribute to society but need ideas or motivation.

A comprehensive search and information site for international volunteer opportunities.

Find the perfect volunteer opportunity online. Has opportunities for a few major American cities.

Thousands of volunteer opportunities online, sorted by category - including virtual volunteering where you can work from home. Free to both organizations and volunteers.