National Resource Center for Cephalopods - Offers resources for cephalopod researchers. Includes photo gallery.The Octopus News Magazine Online - Articles about squid, octupi, and other cephalopods.
Amazing Cuttlefish - Information about the anatomy and ecology of the cuttlefish.
About Octopi - Information about octopus behavior, taxonomy, and anatomy.
Giant Squid (Architeuthis Clarkei) - Images of Giant Squid from the film Incredible Suckers.
The Cephalopod Page - An educational page devoted to cephalopods (nautilus, squid, cuttlefish, and octopus).
Cuttlefish: the Sentient Cephalopod - This page includes a true story of human-cuttlefish interaction, and several photographs.
Giant Squid - Information about Architeuthus dux.
Ocean Planet: In Search of Giant Squid - Myths and facts about the giant squid.
Cephalopod International Advisory Council - Supports and encourages cephalopod research and communication among cephalopod researchers by means of meetings, workshops, a newsletter, and more.
Search for Giant Squid - Smithsonian-sponsored expedition to the Southwestern Pacific in search of the elusive Architeuthus dux.
EuroSquid - Descriptions of current cephalopod research, a directory of researchers, links to publications, cephalopod news, and more.
CephBase - Database on cephalopods (octopus, squid, cuttlefish and nautilus), including images, taxonomy, life history, and researchers.
Chambered Nautilus - Information about Nautilus pompilius.
Giant Squid: The Last Sea Monster - Biology, photographs, video clips, history, and a searchable database of giant squid (Architeuthis) sightings. [Javascript required]
Cephalopoda - An extensive site about cephalopods from the Tree of Life project.