International Association of Jewish Genealogical Societies (IAJGS)
Non-profit organization dedicated to the coordination of the activities of some 60 local Jewish genealogical societies around the world.

Jewish Genealogical Society of Great Britain
Information on tracing Jewish Family History for those with connections in Britain.

Jewish Genealogical Society of Greater Boston
Non-profit organization which develops and promotes the growth, study, and exchange of ideas among people interested in Jewish genealogical research and family history. Formed in 1981 as a study group for people looking into their family history. Over 300 members.

Netherlands Society for Jewish Genealogy
Shows you quite a large number of sources and documents and enable you to use the Internet as a tool in your genealogical research in the Netherlands and in the border territories which could be of interest when looking for your Dutch ancestors.