It isn’t surprising that Florida has a lot of genealogical resources, given the retired population living there.
Here are links to genealogical societies, but also historical societies and digital collections online.
FamilySearch Wiki – Florida
Chronicling America – Florida digitized historical newspapers
La Florida – The Interactive Digital Archive of the Americas
Florida Genealogy Records Online – New Horizons Genealogy
Online Florida Death Records, Indexes & Obituaries
Ancestor Hunt – Newspaper Links
Florida Newspapers Online – FL Department of State
State Archives and Library of Florida – Florida Memory
RAOGK – State of Florida Records Guide
Florida Digital Newspaper Library
University of Florida Digital Collections
Florida Gulf Coast University – Archives, Special Collections & Digital Initiatives
Historical Societies
Historical Society of Central Florida
Miami-Dade County Historical Society
Southwest Florida Historical Society
Genealogical Societies
Afro-American Historical & Genealogical Society – Tampa Chapter
Central Florida Genealogical Society
Citrus County Genealogical Society
Englewood Genealogical Society of Florida
Genealogical Society of Broward County
Genealogical Society of Collier County
Genealogical Society of Sarasota
Indian River Genealogical Society
Jacksonville Genealogical Society
Lee County Genealogical Society
Pastfinders of South Lake County Genealogical Society
Southwest Florida Germanic Genealogical Society
St. Augustine Genealogical Society