Working  through local churches and Christian agencies in Britain and Ireland, Tearfund offers volunteer opportunities in more than 70 countries. Spend from two weeks to four months in projects such as AIDS education in schools, holiday clubs, or care of disabled children and adults. Volunteers are expected to fundraise costs for participating in the programme.  Visit site

Here at Tembeza Kenya, we are proud to offer the people of the world a chance to help ensure all the assets of this magnificent country are protected, from its environment to its animals to its people. Through our volunteer placement service, we offer a variety of truly unique opportunities to anyone yearning for a chance to travel with a purpose. No matter what project you choose to join, whether it's conserving endangered species in a national park, teaching art, music and drama at an elementary school, or promoting HIV/AIDS awareness in rural towns, you can be assured of having a positive and lasting impact, as well as a fulfilling and utterly unforgettable experience.  Visit site

Touch Africa was founded by international volunteers who attended numerous exchange programmes and missions all over the world. The organization aims to train people to become effective entrepreneurs, community leaders and global citizens. It also supports community projects that help alleviate poverty and protect the environment and organizes two-week volunteer camps in partnership with local authorities and NGOs in Kenya.  Visit site

Translations for Progress is an online forum for volunteer translators and a public service intended for the international NGO community. By linking the needs of NGOs and language students and professionals, Translations for Progress hopes to support the development of better communication within the international grass-roots community, improve the ability of organizations to meet their goals, and help students become more actively involved in development issues early on.  Visit site

The Tsunami Volunteer Center, based in Khao Lak, Thailand, was founded in January 2005 in response to the Indian Ocean Tsunami. TVC is a Thai-led NGO funded almost entirely by private donation and is not affiliated with any religions. Its aim is to assist in the restoration of tsunami-affected communities through empowerment. The Center serves strictly as a “partner organization” in that projects undertaken by the Center are driven exclusively by community needs and are executed in full partnership with village members.  Visit site

UNA Exchange, based in UK, works to encourage voluntary service as a means to achieve peace, equality and democracy. Provides opportunities for people from all backgrounds to volunteer, through short- and medium-term projects in more than 70 countries.   Visit site

The United Nations Volunteers programme is the volunteer arm of the United Nations that supports sustainable human development globally through promotion of volunteerism. It mobilizes qualified UN Volunteers and encourages people to become active in volunteering in their countries. Since 1971, some 30,000 UN Volunteers have worked in about 140 countries. Volunteers must be at least 25 years old and have some professional work experience.  Visit site

United Planet (UP) is a leading international, educational, humanitarian, and peace-building, non-profit organization with members and volunteers in over 150 countries devoted to fostering cross-cultural understanding and friendship, supporting communities in need, and promoting social & economic prosperity among cultures in order to unite the world in a community beyond borders. As featured on CNN, United Planet has a diverse range of initiatives, including 1-52 week cultural and volunteer programs, called United Planet Quests, in 50 countries.  Visit site

UNV’s Online Volunteering (OV) service connects development organizations and volunteers over the Internet and supports their effective online collaboration.
It gives development organizations access to a broader pool of knowledge and resources to enhance their capacities, while it offers individuals worldwide additional opportunities to volunteer for development and contribute to the achievement of the Millennium Development Goals.  Visit site

US Doctors For Africa promotes the flow of volunteer physicians, nurses and other medical professionals to Africa to provide capacity building and direct medical services to populations ravaged by disease, malnutrition and inadequate medical care.   Visit site