Volunteer Planet - free and low cost volunteering opportunities

Volunteer Planet is a website that advertises free and low-cost volunteering placements across the globe. They have links with several NGOs, ranging from schools to construction work, in placement sites on every single continent. All you need to do is to use their effective search engine found on their website and start looking for a placement for yourself!

Here is their excellent website:

http://www.volunteer-planet.com/