The websites listed below are rich in images of coral reefs taken by talented underwater photographers, both professional and amateur. Some have photographs that can be copied and used for free, with acknowledgement to the photographer, while others have images that are only for sale. If you have a site that you think should be included in this list, please email me with the link.
Brandon Cole Marine Photography
Dr. David Colvard's Picassa Web Albums
Florida Museum of Natural History Underwater Image Gallery
ICRIN International Coral Reef Information Network Photobank
Liquid Lenz -Coral Reef Photography of Bill Miller
Magic Sea
NOAA Coral Kingdom
NOAA Photo Library Over 20,000 images! Coral reefs and
more.
On The Flats Art Blog
The Coral Reef Alliance Photobank
The LegaSea Project of Bob Talbot
Reef Relief Image Archive