Bechol Lashon Library of Jewish Diversity
Describing itself as “the world's largest online archive on Jewish diversity, “ this searchable and browsable archive of books and newspapers provides full-text access to material about various Jewish communities worldwide.
Berman Jewish Data Bank
Sponsored by the Jewish Federation, this site provides access to “quantitative studies of North American Jews and Jewish communities” as well as reports about the demographics of Jews worldwide and teaching materials.
European Routes of Jewish Heritage
From The European Association for the Preservation and Promotion of Jewish Culture and Heritage (AEPJ) comes this collection of sites and communities of Jewish interest for travelers in Europe and information about their history.
Jewish Communities Worldwide from Beit Hatefutsot
This is a collection of links to sites about Jewish communities around the world from the Diaspora Museum in Tel Aviv. Over the past four decades, Beit Hatfutsot has collected an astounding array of facts, figures, anecdotes, narratives, and cultural descriptions from over 3,000 Jewish communities, past and present.
Jewish Communities in Europe
This list from Jewish Heritage Europe provides links that will take you to the home page for each country, where you will find bibliographies, Jewish communal contacts and links to Jewish museums, cultural and research institutions with Jewish holdings or focus, Jewish heritage and heritage sites, news items — and more.
Kosher Delight List of Jewish Communities
Searchable database of information about Jewish communities and kosher facilities worldwide. While the site has not been updated in a while, it is still a useful resource.
Meaning "all of us," Kulanu is "dedicated to finding and assisting lost and dispersed remnants of the Jewish people." It provides links, arranged by country, to Jewish communities in small and often overlooked corners of the earth. There are also numerous links to relevant sites in a variety of Jewish topics. This is an excellent starting point for information on small Jewish communities.
This organization seeks to reunite lost Jews with the mainstream Jewish community. Its website in English, Hebrew, Catalan, Polish, Spanish and Portuguese provides information about its activities and the lost Jewish communities of the Anousim, Bnei Menashe, Subbotnik Jews in southern Russia, Kaifeng Jews of China, hidden Jews in Poland, the Jews of San Nicandro in Italy, the Inca Jews and the Jews of the Amazon.