The Pinellas Genealogy Society is a member of the Federation of Genealogical Societies. This is an over-arching group that is national in scope and potentially could have all genealogical societies in the country listed as its members. It was founded in 1976
The FGS publishes a quarterly magazine, Forum, which you can find on the genealogy journl shelf in the Largo Public Library.
If you want to see more of what the FGS has to offer, you can go to their website at: http://fgs.org/index.php