| captivitystinks.org | Cetacean Freedom Network |
| campaign-whale.org | Campaign Whale |
| acsonline.org | American Cetacean Society |
| capemaywhalewatch.com | Cape May Whale Watch & Research Center |
| noaa.gov | Alaska Whales - Humpback Whales, Gray Whales, Killer Whales, Northern Right Wha |
| coreresearch.org | Center for Oceanic Research and Education |
| coastalstudies.org | Center for Coastal Studies |
| crru.org.uk | Cetacean Research and Rescue Unit |
| whaleresearch.com | Center for Whale Research: Orcas |
| wdcs.org | The Whale and Dolphin Conservation Society |
United States , Texas , San Antonio