The Marc Blitzstein Website John Jansson's unofficial Blitzstein site is the only website devoted entirely to Blitzstein and his work. It's a lovingly compiled fan site full of information, including a good section on The Cradle Will Rock.
NERO FIDDLED: The Cradle Will Rock In March of 2006, I published this appreciation of Cradle on my political blog, NERO FIDDLED. It includes quotations from the libretto, some historical background and analysis, and the story of how I first encountered Blitzstein's work.
American Century Theatre's Audience Guide The American Century Theatre in Arlington, Virginia included Cradle in its 2000-2001 season. The theatre's website includes a synopsis, character descriptions, and short essays about Marc Blitzstein, the social background of the play, and the legendary original production. A decent primer.
YouTube clip from the 1985 production The 1985 Acting Company production of Cradle, directed by John Houseman, was filmed for PBS. A Patti LuPone fan has posted this excerpt, featuring "Croon Spoon" and "Honolulu" (unfortunately excising "The Freedom of the Press").
Tams-Witmark Music Library Tams-Witmark owns the licensing rights for American productions of Cradle. Their website has information on how to apply. The rights are readily available and reasonably priced for independent theatre companies.
Leonard J. Lehrman Lehrman, perhaps, is the person most responsible for carrying Blitzstein's torch since the composer's death. Lehrman has adapted and staged much of Blitzstein's work, starting with Cradle at Harvard in 1969. With the cooperation of Blitzstein's estate, Lehrman has completed some of the work Blitzstein left unfinished. Lehrman is also responsible for the preservation of much "lost" Blitzstein material, on the recordings A Blitzstein Cabaret and A Blitzstein Centenniel. His website includes information on all of this, plus links to some of the many articles he's published, some of which deal with Marc Blitzstein, though none addresses Cradle directly or in depth.
New Line Theatre New Line Theatre in St. Louis, Missouri presented Cradle as part of its 2001-2002 season. Their website includes director Scott Miller's thoughtful analysis of Cradle, which is worth reading. There is disappointingly little information about It's All True, a play by Jason Sherman which tells the story of Cradle's first production. It's All True was presented at New Line in tandem with The Cradle Will Rock.