The Biodiversity and Biological Collections web site is devoted to information of interest to systematists and other biologists of the organismic kind. Within these pages you will find information about specimens in biological collections, taxonomic authority files, directories of biologists, reports by various standards bodies (IOPI, ACS, SA2000, etc.), an archive of the Taxacom, MUSE-L and CICHLID-L listservs, access to on-line journals, and information about MUSE and Delta.