The MoMI.org: The Museum of Musical Instruments

This site focuses on virtual collections of guitars, mandolins, and musicians of the last two centuries, with photographs, audio files, and beautiful exhibits. Some of the topics are Mark Twain's musicianship, Rita Hayworth's guitar playing in the movie Gilda, and singing cowboys; blond archtop, Dreadnought, and flamenco guitars; and ragtime, movie music, and guitars as works of art.

http://www.themomi.org/museum/