20th Century: 1900-Present
   Introduction to recent compositional work from Essentials of Music. Linked to details on historical themes, musical context, style, and living or recently deceased composer biographies.
   http://www.essentialsofmusic.com/eras/20thC.html

American Music Center
   Promotes creation and performance of American contemporary classical music.
   http://www.amc.net/

BUBL
   Contemporary music resource.
   http://bubl.ac.uk/link/c/contemporarymusic.htm

Composers Online
   A forum where composers of art music can discuss, competitions, upcoming concerts, musicology, and everything else.
   http://composersonline.org/

Composition Today
   Composition competitions, jobs, news, interviews, articles and other resources for composers.
   http://www.compositiontoday.com

Construal of Musical Process Architecture
   The author presents his method of musical composition.
   http://www.maltedmedia.com/books/papers/s7-headb.html

Contemporary Music-making for Amateurs
   COMA promotes participation, for musicians of all abilities, in contemporary music. Includes activities, library, and calls for pieces.
   http://coma.org

Experimental Music Catalogue
   Events, articles, history, and links.
   http://www.users.waitrose.com/~chobbs/

How Should We Listen to a New Piece of Music?
   Essay read at a program of unaccompanied violin music contrasting listening to new works versus ones previously performed.
   http://www.jamesromig.com/Timmons.html

Israeli Composers
   Short history of composition in Israel and several composers mostly born in the early 20th century, with biographies of each.
   http://www.kith.org/jimmosk/israel.html

Kunst der Fuge - 20th c.
   Inclusive list of fugues and contrapuntal compositions written in the 1900's and links to classical musician pages.
   http://www.kunstderfuge.com/900.htm

List of 21st Century Classical Composers
   Wikipedia entry linked to articles on individual people with related internal references and external links.
   http://en.wikipedia.org/wiki/List_of_21st_century_classical_composers

Music at UCC: Web resources: Contemporary music: various composers
   Links to contemporary music resources from University College, Cork.
   http://www.ucc.ie/ucc/depts/music/online/contcomp.html

Musical Patterns
   Essay on ordering and structure in musical composition.
   http://graham.main.nc.us/~bhammel/MUSIC/compose.html

Resources for Composers and Contemporary Music
   Links to contemporary music sites.
   http://www.unt.edu/iawm/ResourceDatabase.htm

Sigma Alpha Iota Philanthropies: Composers Bureau
   Foundation established by the international music fraternity in 1974 maintains pages submitted by contemporary American composers or their representatives. Sorted alphabetically, or by instrument or ensemble.
   http://www.sai-national.org/phil/composers/compaz.html

The Music Division Collections
   Musical documents donated to the New York Public Library for the Performing Arts, some of which are available for perusal online.
   http://www.nypl.org/research/lpa/mus/mus.majcoll.html