International Association of Jewish Genealogical Societies - Cemetery Project: Details of cemeteries with Jewish graves and the sources where further information can be obtained.
Portuguese Genealogy: Includes general advice and resources for researching ancestry in Portugal and the Azores.
Portuguese Genealogy: Fernando Candido describes how to find Portuguese ancestors.
Sephardim.com: A research tool for Sephardic genealogy. Thousands of Sephardic names with points of reference for each name. Sephardic heraldry, history and links.