Stonikas, Marcy
- Operatic spinto soprano lists past and scheduled performances, with audio and weblog.
- http://www.marcystonikas.com

Chicago Businessmen's Orchestra
- Comprised of business men and women performing free concerts in the Chicago area: includes rehearsal and concert information, history and MP3 recordings.
- http://www.cborch.org

CUBE Ensemble
- Contemporary chamber ensemble that offers a profile of the group and its concerts. Also, publishes the CUBE Calendar, listing contemporary music events in Chicagoland along with articles on new music. Mailing list, photo gallery, and online ticket purchas
- http://www.cubeensemble.com/

Chicago Ensemble, The
- Performance ensemble dedicated to the small group chamber music repertoire. Includes schedule, tickets, news, artists, downloads, prints, and contacts.
- http://www.thechicagoensemble.org/

Chicago Chamber Choir
- Choral ensemble of 32 voices under the direction of Timm Adams, Artistic Director. Features mission and outreach, hiring information, CDs, and contacts.
- http://www.chicagochamberchoir.org/

Chicago Youth Symphony Orchestra
- For talented high school musicians, this multi-faceted organization offers three orchestras, a chamber music program, international touring, an outreach program, a satellite strings program, and an annual summer residency at Chicago's Grant Park Music Fes
- http://www.cyso.org/

CCM - Chicago Chamber Musicians
- Group of prominent musicians and chamber music devotees building an internationally-recognized institution devoted to the study and performance of chamber music. Programs, events calendar, performers, online store, and newsletter are featured.
- http://www.chicagochambermusic.org/

Stringsound Ensembles
- Classic musicians offer a string quartet, string trio, and a string duo for weddings and special events.
- http://stringsound.com/

Orion Ensemble
- Quintet performing a broad repertoire of chamber music based. An award-winning group of five professional musicians bring world-class concerts to a varied, growing audience.
- http://www.orionensemble.org/

Northside Youth Symphony
- Non-profit organization operating out of Norhtside College Prep High School. Offering opportunities for young musicians who play in a typical elementary (K-8) instrumental music program.
- http://nsyouthsymphony.org/

Chicago Symphony Orchestra
- Daniel Barenboim directs Chicago's world famous orchestra at Symphony Center. Site includes concert schedule and ticket information.
- http://www.cso.org/