Classical Net - Definition - Classicism 
Definition of this movement.
http://www.classical.net/music/rep/defs/class.htmlThe Viennese School of Composing 
Information about music during the Classical Period, as well as the period's most famous composers (Mozart, Haydn, and Beethoven).
http://www.geocities.com/fullen_h/
Classical: 1750-1825 
Introduction to the period from Essentials of Music linked to details on historical themes, musical context, style, and composer biographies.
http://www.essentialsofmusic.com/eras/classical.html
Kunst der Fuge: fugues of the 18th Century 
Inclusive list of fugues written in the 1700's, comprising all the relevant repertory up to date and links to classical musician pages.
http://www.kunstderfuge.com/700.htm
Music History 102: The Classical or Viennese Period 
Composers, major styles and developments, illustrations, and Real Audio RAM sound files from the Internet Public Library.
http://www.ipl.org/div/mushist/clas/index.htm
Classical Era (1750 - 1820) 
Information on the period linked to biographical material for selected composers from The Conservatory at Humanities Web.
http://www.humanitiesweb.org/human.php?s=c&p=i&a=l&ID=5
Classical Music Era 
Wikipedia article outlining the style of the period, providing history of times within the period, and listing noted composers. Includes internal references to related people and topics plus external links.
http://en.wikipedia.org/wiki/Classical_music_era
Eighteenth Century English Music 
Biographies and discographies of several composers.
http://www.rslade.co.uk/