Below are links I frequently use while researching in New York. The list began after a webinar I did for the New York Genealogical and Biographical Society (12 October 2017).  It became a small of virtual reference library.  Comments and feedback are welcome.

New York State Death Indexes online
1880-1956 (Search “New York Death Index xxxx”) 
1956-1957 at NYS Department of Health
NYS Department of Health Gazetteer Interactive Search – To determine locale of registrars 


New York Maps showing the military tract lots:

1792/3 Map of New York with the military tract by Simeon Dewitt
Taken from a map listed  here – the description is well worth reading.

1812 Map of the nothe rthern part of the state of New York surveyed by Amos Lay
Another map of the military tracts.

1822 Map of the state of New-York with part of the states of Pennsylvania, New-Jersey
Another early map that shows the military tracts and surrounding areas.

Other New York Maps:

French’s 1859 Onondaga County Map
1852 Onondaga County Map at Library of Congress  
1868 Syracuse NY Map at Library of Congress

Some New York Court Records online:  
5th Judicial District website: Onondaga, Oneida, Oswego, Herkimer, Lewis and Jefferson Counties 
Cortland County public records , including Deeds, 108-1985  
Cayuga County Land records : 1972 – current. Some other NY counties available.

New York Naturalization Records:

Immigration and naturalization records Onondaga County, 1802-1859 v1
Immigration and naturalization Onondaga County records, 1802-1859 v2
Transcription project. 
Family Search  New York, County Naturalization Records, 1791-1980

About New York State Census Records at the NYS Library

Other NY resource links:

Central New York Genealogical Society (Tree Talks)
Family Search  book scanning  project.
          Over 6000 volumes from the collection at the Local History and Genealogy Department, at the Onondaga            County Public Library. (and other collections, too!)

New York Heritage