Excellent resource. Katz is a leading Yiddish scholar now based in Vilnius. He has published widely on Yiddish linguistics and Yiddish language and culture. The site contains links to unpublished work and out of print books and articles.
“Katz has been an outspoken critic of the presentation of Holocaust history in the national historical narrative of Lithuania, condemning it as aiming at both mitigating the extent of local involvement in the tragedy and trivializing and obfuscating the Holocaust.” (fromt the Wikipedia entry on Katz)
Click here to acces his site.