- Ape Alliance: Orangutan page - Information on groups working with orangutans around the world, chat page.
- Balikpapan Orangutan Survival Foundation - Sponsors a reintroduction program for confiscated orangutans on the island of Borneo.
- BOS-USA (Balikpapan Orangutan Society, USA) - BOS-USA is a nonprofit organization dedicated to the conservation of orangutans and their habitat.
- Deforestation in Indonesia and the Orangutan Population - Case study from American University's Trade and Environment Database (TED).
- Environmental Investigation Agency (EIA) - EIA investigates and exposes illegal logging which is destroying the key remaining protected orangutan national parks in Indonesia.
- Orangutan Foundation International - Working to increase awareness and understanding of conservation issues facing the endangered orangutan.
- Orangutan Network - Includes map of orangutan research field sites.
- Orangutans Online - Orangutans online - news and factors facing orangutans and their habitat in Borneo and Sumatra - illegal logging, palm oil plantations, illegal pet trade and more