Clarinet Sheet Music
Los Angeles Clarinet Institute
Don't miss this one! You can download TONS of PDF files here, but why bother. The CD only costs $10.
Also check out the clarinet MIDI files, including accompaniments for common repertoire and music for clarinet choir and ensembles:
And more terrific stuff is found via the links page:
Play along clarinet etudes:
Clarinet method for beginning students - Volume one – Jack Snavely Clarinet method for beginning students - Volume two – Jack Snavely 16 Phrasing Studies – Daniel Bonade
Crux Music Services
Bryan Hooley, an Australian and one of my best students, now teaches many students and has a music publishing service. He has arranged and published some very interesting music for clarinet, other woodwinds, and band.
clarinetcosmos.com For Jazz Clarinet Studies by Kyle Coughlin.