Index to Yiddish Periodicals (IYP) is an ongoing bibliographical project that provides a free-access online database, in which are recorded the contents of a wide range of Yiddish periodicals, that were published worldwide beginning with 1862 until 1970. (link – Geographical/ Chronological Distribution of Indexed Periodicals) Up to March 2014 the IYP-team registered approximately 250,000 bibliographic records in Yiddish about the contents of 850 different publications (newspapers, journals, one-time publications, etc.) that were edited and printed by modern Jewish circles in Eastern European countries, in the United States, and in Erets-Israel / Israel. (link - Updated List of Indexed Periodicals; List of Indexed Periodicals with Full Bibliographical Description)
The records, entirely in Yiddish, enable the browser to access information about primary written sources dealing with a broad variety of both Jewish and non-Jewish topics: political or cultural movements and institutions, historical events, literature in Yiddish and other languages, art etc. Hebrew script is obligatory for all search options (link – Record Structure and search options; virtual keyboard – Yiddish characters).