Orchestre National de Jazz: Homepages of the French National Jazz Orchestra, with an interactive timeline of the musician's biographies, stage photographs, discography and performance schedule.
Osby, Greg: Biography, interviews, discography, recordings, tour schedule, forum, and links.
Ouimette, Tim: Cantaloupe Productions profile of band with six horns led by the trumpeter and arranger. Audio samples and photo.
The Oxford Classic Jazz Band: UK swing band website offers pages on past jazz masters, member profiles, upcoming gigs, audio samples and booking information.