PBS
Commanding Heights
This timeline of East Germany from 1945 to 1990 chronicles key events from communist domination to political and economic freedom with the end of the Cold War and the dismantling of the Berlin Wall.
Internet History Sourcebooks Project
Fordham University: Modern History Sourcebook: Khrushchev's Secret Speech
This site provides some excerpts from a translation of Khrushchev's famous Secret Speech denouncing Stalin policies.