New Advent
Catholic Encyclopedia: Alessandro Scarlatti (1660 1725)
Catholic Encyclopedia biography on Alessandro Scarlatti, the Baroque musician. Please note that "The Catholic Encyclopedia" is a historic reference source and should be viewed in the context of resource material dated 1912.
Other
The Sonatas of Domenico Scarlatti
This site contains a full history and links on the sonatas of classical composer Dominico Scarletti. The links may be downloaded.
Other
Baroque Cantata
If information is needed about Baroque cantatas, this site can probably provide it. Ccmposer biographies and audio samples of their cantatas are included in the site. There is also great information about the Baroque era in general.
Northern Arizona University
Sojurn: Alessandro Scarlatti (1660 1725)
Brief note on the Baroque composer Alessandro Scarlatti with clickable resources for learning more about his music and that of his contemporaries.
Other
Baroque Music: Composers
Short bio with listing of works by genre with dates composed. Just click on "Lully".