We are pleased to announce that Oxford University members now have access to the online version of Bergey’s Manual of Systematics of Archaea and Bacteria (BMSAB). This is a microbiology reference work aimed at undergraduates, graduate students and researchers. Bergey’s offers the most complete and authoritative published description of bacterial and archaeal diversity. Now available online for the first time, this edition contains over 1, 750 articles providing descriptions of the taxonomy, systematics, ecology, physiology and other biological properties of all described prokaryotic taxa. Further information about the book is available via the publisher’s website.