Information on these algae, the earliest organisms to be preserved in the fossil record, with a diagram and photomicrographs of Anabaena.

Architects of earth's atmosphere.

A newsletter intended to provide cyanobacteriologists with a forum for rapid informal communication.

Research and information about cyanobacteria, blue-green algae, and prochlorophytes. Includes image gallery, CyBib bibliographic database, a links library, protocols and media, directories, and announcements.

Article from the New Scientist on studies by William Schopf of UCLA of certain ancient Australian rocks using a technique called laser Raman analysis.