Where You Can List Volunteer Opportunities

Idealist
Offers a database that allows nonprofits to list their volunteer opportunities throughout the world.

Go Overseas
Go Overseas is the Yelp/Trip Advisor for programs abroad: We list every volunteer, study, teach & intern abroad program in the world, with ratings/reviews and more. Our goal is to help people make more informed and educated decisions when choosing between programs abroad.

ICVolunteers
Unique international program offering the management of volunteers for nonprofit conferences and events, at no charge except expenses. 

Online Volunteering service
A free service provided by the United Nations Volunteers programme that connects development organizations with online volunteers. Volunteers can apply to hundreds of online opportunities. Organizations can post assignments and access worldwide expertise

Soziale Helfer
A website listing volunteer work in social work and health care for Germany. The user can add offers and requests for free.

Take Part
With the tagline "Inspiration to Action." An independent online community that connects its members directly to the issues that inspire them to engage, contribute and take action.

True Travellers Society
A Canadian not-for-profit organization dedicated to connecting people to global volunteer/opportunities and building an online community of likeminded individuals who can share this information. Accessing all the information and becoming a member are both free. After becoming a member, organizations can post volunteer opportunities.

Universal Giving

World Wide Helpers
Volunteers can search low cost and no cost projects for free and non profits post your projects for free.