Amanita Pers.: Includes bibliography, keys, checklists of species and, list of accepted names by section of the genus, taxonomic details of species, links to descriptions of methodology for morphological study, links to papers and lab websites for molecular studies, etc

Hardy's Internet Guide to Marine Gastropods: A virtual encyclopedia of sea snails. The catalog is organized taxonomically, and contains pictures, common and scientific names, and basic taxonomic information for a large number of species

Tardigrade: Wikipedia article about water bears including their anatomy, evolution and adaptations to life in extreme environments