This website features Bigelow Laboratory's CCMP, the national culture collection of marine phytoplankton for the USA. The CCMP has over 2100 strains from around the world, the preponderant marine phytoplankters, as well as benthic, macrophytic, freshwater and heterotrophic organisms. Users can search the online catalog for strains using taxonomic, geographic and other parameters. Strain records have (when available) collection and isolation information, culturing medium recipes and growth conditions, photographs, GenBank accession link, a collection site map, and a link to the taxonomic database Micro*scope. The website also features information about a CCMP course in phytoplankton culturing techniques and facilities for visiting scientists.