Societies and Organizations

• The New Jersey Historical Society: The New Jerseyhistory.org/
  
• The Genealogical Society of New Jersey
• The Genealogical Society of Bergen County
• North Jersey History and Genealogy Society
• Jewish Genealogical Society of Central Jersey
• Morris Area Genealogy Society
• The New Jersey Historical Society
• Passaic County Historical Society Genealogy Club
• Morris County Historical Society
• Bergen County Historical Society

New York

• JGS of New York
• Jewish Genealogical Society of Long Island Youtube channel.

• Italian Genealogical Group: N.Y. Vital records indexes
• Metro NY Genealogy and Computers Group

National/Other

• I.A.J.G.S. International Association of Jewish Genealogical Societies
• National Genealogy Society
• Federation of Genealogical Societies
• International Institute for Jewish Genealogy and Paul Jacobi Center at the National Library of Israel.

Professional Researchers

• Association of Professional Genealogists: an international organization dedicated to supporting those engaged in the business of genealogy through advocacy, collaboration, education, and the promotion of high ethical standards.
• Finding a Professional Genealogist: A list on Jewishgen.
  
• Hiring a Professional Genealogist: An article in Jewishgen about hiring a professional.
• The Association of Genealogists and Researchers in Archives: A professional organization in the United Kingdom. (Not specifically Jewish.)