| AlgaeBase: A database of information on algae that includes terrestrial, marine and freshwater organisms. |
| Australasian Society for Phycology and Aquatic Botany: Society information, resources, and links. |
| European Journal of Phycology: Publishes papers on all aspects of algae, including cyanobacteria. |
| Guide to Pressing Seaweed: Includes instructions on collecting and pressing seaweed, ideas for science and art activities.. |
| Indian Ocean Benthic Algae: On-line version of the Catalogue of Benthic Marine Algae of the Indian Ocean, with indexes, geographical lists, bibliographies, and search capacity. |
| Northwest Algal Symposium: Phycologists from the Northwestern United States and Western Canada: includes contact and activity information. |
| Phycological Society of America: Information about the society dedicated to the study of algae, its publications and links to other phycological sites. |
| Seaweed: This site has a lot of information on all aspects of seaweeds and marine algal biology. |