Baroque Composers
List of names arranged by death date from Dr. Estrella's Incredibly Abridged Dictionary of Composers. Includes links to individual biographies and further resources.
http://stevenestrella.com/composers/composersbar.html

Baroque: 1600-1750
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/baroque.html

Baroque Music
Articles, suggested recordings, links, biographies, portraits, plus music samples, notes on performance, information on the lute-harpsichord and the Baroque violin bow, and background on organ builder Gottfried Silbermann.
http://www.baroquemusic.org/

Kunst der Fuge - 17th c.
Inclusive list of fugues written in the 1600's, comprising all the relevant repertory up to date and links to classical musician pages.
http://www.kunstderfuge.com/600.htm

Music History 102: The Baroque Age
Composers, major styles and developments, illustrations, and Real Audio RAM sound files.
http://www.ipl.org/div/mushist/bar/index.htm

Baroque Music
Brief studies of styles and composers from throughout the period. Links to related topics, including images, history, and clothing.
http://www.kipar.org/historical-resources/music.html

Baroque Composers
Alphabetical index of over 100 Wikipedia articles plus internal links to related material.
http://en.wikipedia.org/wiki/Category:Baroque_composers

The Italian Seicento (17th Century)
Traces the beginning of opera in Florence with links to biographies of composers and related material. From the Here Of a Sunday Morning radio program.
http://www.hoasm.org/PeriodV.html

German Baroque Music (17th Century)
Follows the development of the new music from Italy with emphasis on Schütz and Schein. From the Here of a Sunday Morning radio program.
http://www.hoasm.org/PeriodVI.html

Western Europe from 1650 to 1750
Overview of new musical developments with special focus on Purcell, Couperin, Lully, and Rameau from the Here Of A Sunday Morning radio program.
http://www.hoasm.org/PeriodVII.html

The Italian Settecento (18th Century)
Summary of developments in Bel Canto and Opera Buffa as well as instrumental developments with links to biographies and related material from the Here Of a Sunday Morning radio program.
http://www.hoasm.org/PeriodVIII.html

The German Pre-Classics (1700-1760)
Follows the popularizing of late Baroque musical styles, emphasizing Frederick the Great, Quantz, Graun, and Telemann. From the Here Of A Sunday Morning radio program.
http://www.hoasm.org/PeriodXI.html

Early Baroque (1600-1680)
Background information, resources, and biographies and keyworks of the composers from The Conservatory at Humanities Web.
http://www.humanitiesweb.org/human.php?s=c&p=i&a=l&ID=3

Late Baroque (1680-1750)
Background information, resources, biographies, and key works of the composers from The Conservatory at Humanities Web.
http://www.humanitiesweb.org/human.php?s=c&p=i&a=l&ID=4

18th Century English Music
Biographies of several composers, portraits, and in-depth illustrated history of the period.
http://www.rslade.co.uk