PBS
Pbs: Nature: Encountering Sea Monsters
An extensive amount of information is featured in this PBS site on Cephalopods. Images, videos, books, and web links are just a few of the items that can be found here.
TED Talks
Ted: Ted Ed: How Squids Outsmart Their Predators
Carly Anne York explains how the stealthy cephalopods have mastered deep sea survival.
Smithsonian Institution
National Museum of Natural History: Search the Giant Squid
This site explores, in detail, what is known about the Giant Squid, and current efforts to uncover the squid in its natural habitat.
CK-12 Foundation
Ck 12: Life Science: 9.8 Types of Mollusks
Understand the characteristics, diversity, and classification of mollusks.
MarineBio Conservation Society
Marine Bio: Giant Octopuses
Illustrated reference tool features useful information on the giant octopus with details on physical characteristics, behavior, range, habitat, diet, and conservation status.
MarineBio Conservation Society
Marine Bio: Blue Ringed Octopuses
Illustrated reference tool features useful facts on the blue-ringed octopus with details on physical characteristics, behavior, range, habitat, diet, and conservation status.
Monterey Bay Aquarium
Monterey Bay Aquarium: Broadclub Cuttlefish
Meet the broadclub cuttlefish and learn cool facts, its natural history, and conservation status.
Wikimedia
Wikipedia: Squid
This encyclopedia article from Wikipedia provides a general overview of squid. Content includes a focus on their physical characteristics, diet, and habitat.
Other
Dalhousie University: Australian Giant Cuttlefish
This site from the Dalhousie University provides many great pictures of the Australian Giant Cuttlefish!
Other
Dalhousie University: The Common Cuttlefish
This site from the Dalhousie University provides a great picture and information on the common cuttlefish.
Other
Dalhousie University: The Pharaoh Cuttlefish
This site from the Dalhousie University provides a great picture of the pharaoh cuttlefish, but minimal information.
Encyclopedia of Life
Encyclopedia of Life: Cephalopods
The Encyclopedia of Life presents this in-depth overview of Cephalopods (Cephalopoda), including their habitats, size, conservation status, and much more. Images of this class and maps of its global distribution can also be found here.
PBS
Pbs Teachers: Scientific American: Creatures of the Deep: Spineless, but Smart
Investigate scientists' explorations of octopus middens, or garbage piles, and apply this scientific observation to an examination of a school lost-and-found collection. Create an inventory and analyze the objects from various perspectives.
Monterey Bay Aquarium
Monterey Bay Aquarium: Giant Octopus
A slideshow of captioned photographs of the giant octopus, with links to a video of feeding time in the giant octopus tank and to other animals from the deep reef--the sheep crab, wolf-eel, and lingcod.