Smithsonian Institution
National Museum of Natural History: Department of Invertebrate Zoology
Search the Invertebrate Zoology Collection, and read about original research performed on all 30 major invertebrate animal phyla except insects.
Untamed Science
Untamed Science: Biodiversity: Animals: Invertebrates
See all the of the different animal phyla that represent invertebrates and how diverse they are with the help of short video clips.
Smithsonian Institution
National Museum of Natural History: Invertebrate Zoology Collections Search
A searchable database of the collections of invertebrates at the National Museum of Natural History. You can search by keyword, or in a more scientific way, such as by phylum or expedition.
PBS
Pbs: The Shape of Life
Companion site for the 8-part PBS series, "The Shape of Life." Each section focuses on a different phylum, from porifera through chordata. This site is highly informative, with beautiful photography.
Other
Glaucus: Cnidaria
This is the home page of the phylum Cnidaria. Links to resources to the major group of invertebrates that includes the sea anemones, corals, jellyfishes, hydroids, and animals that contain 'cnida' stinging capsules.