Kurt Weill Foundation for Music:The official site for information about Kurt Weill and Lotte Lenya, their music and performances.
Classical Music Archives: Weill: Biography from the Concise Oxford Dictionary of Music.
Kurt Weill: A brief biography of Weill, from The Grove Concise Dictionary of Music.
The Papers of Kurt Weill and Lotte Lenya: Information about the collection in the Irving S. Gilmore Music Library of Yale University.
Tribute to Kurt Weill: A detailed biography and an appreciation of Weill's music.