Hands On Twin Cities
- Lists volunteer opportunities in the Minneapolis/St. Paul area. Also provides volunteer educational resources and training services.
- http://www.handsontwincities.org

TechMission: ChristianVolunteering.org
- Matches volunteers with Christian social service organizations, nonprofits and churches to provide opportunities in urban ministry, youth programs, short-term missions, and virtual volunteering.
- http://www.christianvolunteering.org

Volunteer Abroad
- Directory for international volunteer programs. Search by region, country, type of work or project duration.
- http://www.volunteerabroad.com/

CharityGuide.org
- Directory of editorially-reviewed volunteer opportunities, which are entirely flexible and immediately actionable. Also includes volunteer vacations.
- http://charityguide.org/

Volunteer Solutions
- Find the perfect volunteer opportunity online. Has opportunities for a few major American cities.
- http://volunteersolutions.org/

International Volunteer Programs Association
- A comprehensive search and information site for international volunteer opportunities.
- http://www.volunteerinternational.org

CharityEzone
- 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.
- http://www.charityezone.com/

Charity Portal UK
- Searchable directory of UK charities. Charities listed by type, discussion forum and donation by click.
- http://www.charityportal.org.uk/

Charity Guide
- Searchable database of United States nonprofits. Website also features donation guide, procedures by which organizations can be listed.
- http://www.charity-charities.org/

Charity Choice
- Encyclopedia of British charitable organizations in 27 categories in a fully searchable database.
- http://www.charitychoice.co.uk/