The Orange County Library System's genealogy collection is located at the West Oaks Branch & Genealogy Center (1821 E. Silver Star Rd., Ocoee, FL 34761). It includes an extensve collection of genealogy reference books organized by state as well as a sizable collection of donated family histories organized by surname.

Historical Society of Central Florida 

Central Florida Genealogical Society  

Central Florida Memory Digital Collection 

Central Florida Heritage Foundation - in the Internet Archives (Wayback Machine) - a lot of great Orlando history here that's no longer available elsewhere on the internet. CFHF no longer exists.

University of Florida Digital Collection

Florida Memory Digital Collection