National Yiddish Book Center–Stephen Spielberg Digital
Thousands of Yiddish books available to read online, download, or order.
Dartmouth Jewish Sound Archive
YIVO Library Books
Another great source for full text, scanned Yiddish books
Lithuanian Archives E-library
Site in Lithuanian and English
Under advanced search tab choose "jidis" in the language pull-down for full text, scanned periodicals
Steven Spielberg Jewish Film Archive
300+ films viewable online
Brandeis Yiddish Studies libguide
Comprehensive resource for all things Yiddish
University of Illinois libguide
From the site: "Portal for anyone who is interested in Yiddish and Yiddish Studies. It is part of the WWW Virtual Library History Central Catalogue."