Long Island's Gold Coast
- A guide to Long Island's mansions, past and present. Includes mansion ruins, and those used in movies.
- http://www.ligoldcoast.com/

Long Island Gold Coast
- Exhibit which portrayed some of the opulent mansions that have been transformed into educational institutions.
- http://www.liu.edu/cwis/cwp/library/exhibits/goldcoas.htm

Society for the Preservation of Long Island Antiquities
- Not-for-profit organization devoted to the preservation of architecture in the region. Information given on historic house museums, preservation services, events and membership.
- http://www.splia.org/