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The phycology.net - an internet portal from scientists for scientists presenting information about diversity of algae

AlgaeBase is a database of information on algae that includes terrestrial, marine and freshwater organisms.

Search for algae in AlgaeBase, The Indian Ocean Catalogue, Tree of Life, GenBank and Google.

Phycologists from the Northwestern United States and Western Canada: includes contact and activity information.

Information about the society dedicated to the study of algae, its publications and links to other phycological sites.

This site has a lot of information on all aspects of seaweeds and marine algal biology.