Organizations
ASCAP - American Society of Composers and Authors, a non-profit music licensing organization
BMI - Broadcast Music, Inc., a music licensing organization
American Academy of Arts and Letters - comprised of leading figures in the humanities
Fromm Foundation - offering commissioning grants and support for musical performances
American Composer's Alliance - NYC based organization that promotes new music
American Music Center - devoted to the dissemination and promotion of American art music
Newmusicbox.org - online news about American art music, affiliated with the American Music Center
Musicians
Pittsburgh New Music Ensemble - commissions emerging composers annually
Emerson Quartet - one of the best string quartets in the world
Alarm Will Sound - a New York new music ensemble comprised of some amazing virtuosi
Brave New Works - new music ensemble founded at U of Michigan by conductor Chris Kim
TRANSIT - NYC New Music Ensemble
JACK Quartet - American New Music String Quartet
Ossia - a cutting-edge new music ensemble at Eastman
Goska Isphording - a Polish harpsichordist specializing in new music
Claude Vivier - this late Canadian composer is worth listening to (if you have any taste, that is)
MELA Foundation - La Monte Young and Marian Zazeela, minimalist music and sound installation art
David Little - Composer of rock influenced music with political themes
Zhou Tian - Chinese composer living in LA
Ralph van Raat - Dutch pianist specializing in contemporary music
Tim Sullivan - Composer and Theorist
Daniel Wohl - French-American Composer living in NYC
Audrey Luke - Photographer (Oakland, CA)
Caleb Burhans - NYC Composer, Countertenor, Tenor, Violist & Violinist
Jon Forshee - American composer and electronic music enthusiast in Paris
Leslie Bassett - Composer and Teacher at Michigan (Emeritus)
William Bolcom - Composer and Teacher at Michigan
Martin Bresnick - Composer and Teacher at Yale
Michael Daugherty - Composer and Teacher at Michigan
Daniel S. Godfrey - Composer and Teacher at Syracuse
David Liptak - Composer and Teacher at Eastman
Betsy Jolas - French-American Composer and Teacher in Paris
Bright Sheng - Composer and Teacher at Michigan
Brian Belet - Composer and Teacher at San Jose State
Pablo Furman - Composer and Teacher at San Jose State
Allen Strange - Electo-Acoustic Composer and Teacher at San Jose State(Emeritus) (b.1943 d.2008)
Dan Wyman - Film/Concert Music Composer, Ethnomusicologist and Teacher at San Jose State
Olga Neuwirth - Austrian Composer
Georg Friedrich Haas - Austrian Composer
Hans Abrahamsen - Danish Composer
Steven Stucky - Pulitzer-Prize winning composer, writer and lecturer, Teacher at Cornell
Venues
Symphony Space - a newer theatre in uptown New York which features many small ensembles
Carnegie Hall - includes Stern Auditorium, Zankel Hall and Weill Hall
Lincoln Center - features a cluster of performing arts venues in midtown New York
Educational
Tanglewood - summer music festival in the Berkshires, offers summer fellowships to young musicians
University of Michigan School of Music
Eastman School of Music at the University of Rochester
San Jose State School of Music and Dance composers' page
Musicology
Polish Music Center at USC - here you can find out almost anything about polish music
Kulintang music - recordings, instruments, literature on the Philippine gong music from Mindanao