Ancestry Library Edition - Founded in 1983 and now one of the leaders in online family history.
Family Search - FamilySearch is the largest genealogy organization in the world. This site provides free access to extensive resources and records gathered and preserved by the Church of Jesus Christ of Latter Day Saints.
Cyndi's List - A categorized & cross-referenced index of thousands of genealogical resources on the Internet.
World GenWeb Project - The WorldGenWeb Project is a non-profit, volunteer based organization dedicated to providing genealogical and historical records and resources for world-wide access.
U.S. Genweb - The USGenWeb Project is a group of volunteers working together to provide free genealogy websites for genealogical research in every county and every state of the United States.
Family Tree Magazine 101 Best Sites for Genealogy
Irish American Immigration History - An educational resource for understanding the history of Irish Immigration.
Special Collections, Feinberg Library - The collection focuses on the northern New York State counties of Clinton, Essex, and Franklin, and the Adirondack and Champlain Valley regions.
Clinton County Historical Association - The Clinton County Historical Association is dedicated to preserving Clinton County's heritage. The Association reveals the way County's inhabitants lived and worked for over three hundred years.
Northern New York American-Canadian Geneological Society - The societies library houses many church records from the local area along with hundreds of Canadian records. Included are Baptism, Marriage and Death records.
Clinton County Clerk, Plattsburgh, N.Y. - Contains many legal documents from the county including Deeds, Maps, Probate Records, Wills, Court Records, etc.
Clinton County Historian - Designed to collect, record, and preserve the history of Clinton County, the Historian’s Office maintains archival holdings for virtually every facet of the county’s history.