Paleontological Society:International organization devoted exclusively to the advancement of the science of paleontology through the dissemination of research by publication and meetings.
Association of Applied Paleontological Sciences: A professional association of commercial fossil dealers, collectors, and fossil enthusiasts.
Bibliography of Fossil Vertebrates - The BFV Online: A computerized database for research in evolutionary paleoecology.
NSS Paleontology Section: National Speleological Society organization for cavers interested in paleontology.
Paleontological Research Institute (PRI): PRI's website includes a number of educational sections. The society publishes "American Paleontologist" and is located in Ithica, New York.
SEPM: Society for sedimentary geology.
The Paleobiological Fund: Paleobiological and paleontological research and education funding.
Western Interior Paleontological Society (WIPS): Society has monthly meetings, organized activities, and field trips.
Willi Hennig Society: Society of cladisticians, publishes the journal "Cladistics"