Useful links for Repertoire Lists and Catalogues  
Undergradute Repertorie Suggestions
Canadian Clarinet Work
Canadian Music Centre (This is a great resource for Canadian clarinet music which includes PDF samples, free borrowing from their collection, and stream audio recordings. Be sure to sign up for free login)
International Clarinet Association
New Music Online Music Library USA
Australian Music Centre
The Clarinet Institute 

Links to Music Careers Sites for Performers, Teachers, and Arts Administrators