- Non-government Organizations on cetacean conservation around the World (19)
- American Cetacean Society
- The Bottlenose Dolphin Research Institute (BDRI)
- European Association for Aquatic Mammals
- International Fund for Animal Welfare (IFAW)
- International Whaling Commission (IWC)
- Cetacean Society International
- The Captive Animals Protection Society – Aquarium
- Marine Animal Rescue Society
- Marine Connection
- Marine Mammal Conservancy
- The Orca Recovery Campaign
- Pacific Whale Foundation
- The Porpoise Page
- Porpoise Science and Conservation
- The Society of Marine Mammalogy
- Taiwan Cetacean Society (TCS)
- Tethys Research Institute
- The Whalesong Project
- Whale and Dolphin Conservation Society (WDCS)
- Non-government Green Groups in Hong Kong (9)
- Other Useful Information (8)
- Department of Ecology and Biodiversity of the University of Hong Kong
- Environmental Protection Department, the government of Hong Kong
- Hong Kong Discovery Magazine
- Hong Kong Observatory
- Hyper Workshop (in Chinese Only)
- Stephen Wong’s Marine Life Photo Gallery
- Takako Uno’s Marine Life Photo Gallery
- Photo Gallery for HK Divers
- General Cetacean Information (6)
- Indo-pacific Humpback Dolphin (Chinese White Dolphin) Information (3)
- Finless Porpoise Information (2)
- Hong Kong Cetacean Information (1)
