| Bugsysiegel.net: Website examines "the man who invented Las Vegas," Benjamin Bugsy Siegel. Features include biography, quotes, photos, official documents, web links, information and photos of the Flamingo Hotel. |
| Crime Library: All About Mickey Cohen: Writer Mark Gribben's biographical essay on the New York street tough who became a California gambling czar. |
| Crime Library: Arnold Rothstein: Writer Allan May presents a biography of New York mobster, gambler and bootlegger Arnold Rothstein. |
| Crime Library: Bootlegger's Paradise: Writer Mark Gribben's feature article on the Jewish Purple Gang of Prohibition Era Detroit; photos and bibliography. |
| Crime Library: Dutch Schultz: Beer Baron of the Bronx: Writer Allen May delivers a biography of Arthur "Dutch Schultz" Flegenheimer. |
| Crime Library: Meyer Lansky: Mastermind of the Mob: Writer Mark Gribben states, if there was a golden age of organized crime, it began with Lansky. |
| FBI: Freedom of Information Act: Benjamin 'Bugsy' Siegel: Bureau files on New York/California/Las Vegas racketeer Siegel contain 2,421 pages. |
| LIFE Books: At Home With Mickey Cohen: Photo gallery and brief interview from "Mobsters and Gangsters" shows Cohen and wife LaVonne at their Brentwood, California, home in the 1950s. |
| Wikipedia: Arnold Rothstein: Biography of the New York gambler and racketeer. Topics include the 1919 "Black Sox" World Series scandal, bootlegging activity and Rothstein's 1928 murder. |
| Wikipedia: Bugsy Siegel: Biography of the gangster. Topics include Siegel's underworld business ventures in Los Angeles and Las Vegas (Flamingo Hotel), and his 1947 assassination. |
| Wikipedia: Dutch Schultz: Biography of the New York gangster. |
| Wikipedia: Meyer Lansky: Biography of the New York gangster. |
| Wikipedia: Mickey Cohen: Biography of the California gambler. |
| Wikipedia: The Purple Gang: Article describes the history of the Detroit bootlegging gang. |