These are not genea-blogs so I wanted to post these in a separate place than Denise Olson's challenge below. As I've stated, most of my ancestors are from New York State beginning in the 1660s in the Albany and Schenectady area, then down to Kingston, Marbletown and Stone Ridge in Ulster County around the late 1600s - early 1700s, and in the Adirondack Region of Lewis, Saint Lawrence and Jefferson counties beginning in the mid 1800s.
These are several resources on the Internet that I frequent almost daily in performing my research:
New York Counties Selection List, NYGENWEB
Not only does this present a great map of New York by county, it also lists the dates on which the county was formed. Very often I am entering Schenectady, Albany, New York when I should be entering Schenectady, Schenectady, New York. The county list allows me to quickly see which counties were formed from other counties and when.
The People of Colonial Albany Live Here
One of my favorite sites especially for the biographical sketches of some of my oldest ancestors such as Arent Andriesse Bradt who is my 10th great-grandfather. Besides biographies, there are pages on various locations in the Capital District as well as transcribed wills of close to 100 early Albany settlers.
Schenectady Digital History Archive
A service of the Schenectady County Public Library, if you have any New York Dutch ancestors you will most likely need this website. Most important to me are the major works such as Contributions for the Genealogies of the Descendants of the First Settlers of the Patent and City of Schenectady, from 1662 to 1800 by Jonathan Pearson and Hudson-Mohawk Genealogical and Family Memoirs.
Northern New York Historical Newspapers
A great resource for many newspapers from Watertown, Lowville, Plattsburgh and most of the Adirondack Region. I use this for birth and death announcements and those little snippets of "who visited who" which nowadays seem like gossip but were vital communications back then.
During this month of January I will be adding more resources for New York research over on the sidebar.