Career Bridges
- Non-profit foundation awarding money to young classical singers. Includes history, news, and application form.
- http://www.careerbridges.org/

Professional Women Singers Association
- New York based group of female classical singers, including a membership roster with contact details.
- http://pwsa.homestead.com/

Chamber Music Society of Lincoln Center
- Features concert and touring calendar; discography with RealAudio samples.
- http://www.chambermusicsociety.org/

Classical Free-Reed, Inc.
- Nonprofit organization promoting the free-reed instruments (such as accordion, concertina, reed organ, harmonica, sheng) in classical music.
- http://www.ksanti.net/free-reed/