List of Prokaryotic names with Standing in Nomenclature (LPSN)
This site features an extensive annotated list of the nomenclature of bacteria as well as information on nomenclatural changes. The site also provides a hierarchical classification of prokaryotes.
Textbook of Bacteriology
Created by University of Wisconsin – Madison professor Kenneth Todar, this online textbook contains a well organized table of contents that allows users to easily access a wealth of information related to bacteriology. Topics covered include general bacteriology, bacterial relationships with animals, principles of bacterial pathogenesis, and bacterial pathogens and diseases of humans.