National Speleological Society
All SPG members are encouraged to join and participate in the NSS. The NSS produces a monthly NSS News and a quarterly Journal of Caves and Karst Studies. Jon Beard is the current Conservation Task Force Coordinator for the NSS. Two-thirds of the SPG membership are NSS members!
Missouri Speleological Survey
This organization is the repository of the Missouri caves files and produces a bi-monthly MSS Liaison newsletter and Missouri Speleology journal. SPG members are encouraged to join the MSS, attend its three meetings annually and contribute to the cave files and cave studies.
Missouri Caves & Karst Conservancy
The MCKC owns Skaggs Cave in Pulaski County, co-manages Dream Cave of Ozark County, leases Crystal Caverns of Barry County, manages Sarcoxie Cave of Jasper County and others. Three of SPG's members (Bonnie Howard, Bill Heim and Jon Beard) are members of the MCKC Board of Directors. SPG members are encouraged to become members of the MCKC and assist in the conservation of Missouri's caves. The MCKC produces the MCKC Quarterly newsletter and meets four times a year. Want to buy something through Amazon.com? Use the MCKC website to access Amazon.com. 5% of all purchases made through the MCKC website link goes to the MCKC to further cave conservation in Missouri! Also, want to have a cave license plate? Check this out at the MCKC website!
American Cave Conservation Association
The American Cave Conservation Association owns and operates the American Caves and Karst Museum in Horse Cave, Kentucky and owns the nearby entrance to Hidden River Cave, one of America's longest caves. The ACCA produces the quarterly American Caves. The ACCA was co-founded by Tom Aley of the Ozark Underground Lab.
Bat Conservation International
Bat Conservation International owns Bracken Cave in Texas, the world's largest colony of bats (about 20 million Mexican free-tailed bats use this 400-foot cave in the summer). BCI produces the quarterly BATS magazine.
Biospeleology
Dr. Bill Elliott, who authored the educational article on cave gating, has this website on biospeleology.