Houdini in The New York Times Houdini in TheNew York Times is a free resource for Houdini enthusiasts and researchers who might not otherwise have access to the hundreds of Houdini articles, features, and letters that appeared in the Times during the first half of the twentieth century.
American Variety Stage: Houdini The Houdini component of the American Variety Stage Collection comprises 143 photographs and 29 related items of personal memorabilia that document the career of Harry Houdini. From the Library of Congress.
Houdiniana.com Claims to be "The Largest Electronic Archive in the World on Houdini"