There is a wealth of information available outside of the Westchester County Archives that can be helpful when one is researching Westchester history. Below are some links to governmental sites, as well as some additional general resources for genealogy researchers.
Government Web sites
List of Municipalites in Westchester County (including contact information)
The New York State Historical Records Advisory Board Web site is a very helpful tool that offers guidance and support on how to preserve, access, and manage historical collections. There is information about grants, programs, disaster preparedness, best practices, collections around New York, and a section entitled "You and Your Records" that offers advice on how to care for personal papers or organizational records or donate them to a repository.
The New York State Archives is a central repository for governmental records created around the state, including vital records and military records for people who lived in Westchester County. They have compiled a list of records useful for those searching for genealogical records within New York State, as well as instructional videos on how to better preserve your own historical records. Recently they also have teamed up with Ancestry to provide free access to some Civil War service records and the almshouse and poorhouse census held by the NYS Archives. A complete list is available on Ancestry.com.
The New York State Library also has a very helpful genealogy topic page with information on how to get started building your family tree, what records can be found at the New York State Library, as well as regional information that may be helpful.
The New York City Municipal Archives is helpful when searching for some birth, death and marriage records that took place in New York City (see a list of their collections), as well as looking for historic images of or publications about New York City.
The holdings of the National Archives at New York City consist of Federal records from New Jersey, New York, Puerto Rico, and the U.S. Virgin Islands. They provide genealogical research assistance, offer classes and workshops on doing family histories, and have exhibits throughout the city.
Cyndi's List is a Web site that has compiled a list of genealogical resources from all over the world.
The New York State Historical Association Research Library has useful resources for students, scholars, genealogists, and researchers.
A Guide to New York Historical Resouces has links to general NY State history and culture, as well as information on genealogical resources found in NY.
Mocavo.com is a new search engine (powered by Google) that searches only genealogy-based websites, blogs, and forums.
Old Maps Online is a great resource for maps that contains digitized images of published maps and atlases from various collections from around the world.
Some basic free genealogy Web sites that may be helpful are:
Other "fee-based" sites also are available to help in doing genealogical research: