This Web site includes a map of Jewish Eastern Europe (1830-1914). Some text in the accompanying article is in English; most of the text is in Cyrillic Belarusian (Windows 1251 encoding).
This is a translation from: Katastrofia Evreev v Belorusii 1941-1944
(The Holocaust in Belarus), Leonid Smilovitsky, Tel Aviv, Biblioteka Motveya Chernogo, 2000
The East European Jewish Heritage Project Web site. The Jewish community of Belarus. Information about travel, genealogy, history, tradition, health, relief work and news in Belarus.
The Jewish History of Belarus Web site (on Heritage Films). (Note: Some of the information on this Web site is suspect, or clearly inaccurate. I do not know any reputable source about Belarus that considers the last sentence on this linked page to be true: "Since independence Belarus has moved slowly on market reforms, but Lukashenko has attempted to speed their implementation." (sic).)
The NCSJ Belarus page. (Note: "Advocates on behalf of Jews in Russia, Ukraine, the Baltic States & Eurasia.")