The American Society for Microbiology was founded in 1899 and current goals of the professional organization include advancing the study of microbiology, building the careers of members, advocating for science, and improve global health. You can use their website to search through research, look for funding, or even read articles on running your lab and download lesson plans for K-12 and Undergraduate students.
The Microbiology Society is a registered charity based in Europe but with worldwide membership. They create Microbiology Today, a magazine specifically for members and provide members with access to Science in Parliament magazine created by the Parliamentary and Scientific Committee. Members also have access to career, education, membership guides, and outreach resources.
The International Society for Phylogenetic Nomenclature encourages the development and use of phylogenetic nomenclature and oversees the implementation of a code of rules to govern phylogenetic nomenclature known as the PhyloCode. Open to anyone.