Some Useful Links:

YIVO Institute for Jewish Research
www.yivo.org

National Yiddish Theatre - Folksbiene
www.nationalyiddishtheatre.org

The New Yiddish Repertory Theater
www.newyiddishrep.org

Forward (Forverts)
www.forward.org

The Thomashevsky Project
www.thomashevskyproject.org

Congress for Jewish Culture
www.congressforjewishculture.org

American Society for Jewish Music
www.jewishmusic-asjm.org

The Tenement Museum
www.tenement.org

The Jewish Women's Archive
http://www.jwa.org/encyclopedia/article/yiddish-theater-in-united-states

CYCO Books
www.cycobooks.org