Gregorio Allegri
- Caricature, brief comments on church music, and Naxos discography.
- http://www.naxos.com/composerinfo/19.htm

Classical Music Archives: Allegri
- Sound files in MIDI format.
- http://www.classicalarchives.com/early-a.html#ALLEGRI

Allegri, Gregorio
- Biography noting his positions as singer, composer, and maestro di cappella with a focus on his Miserere. From the Grove Concise Dictionary of Music entry at WQXR radio.
- http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html?record=222

Allegri, Gregorio (c. 1582 - 1652), Italy
- Biographical data, recommended CDs, books and sheet music, bibliography, and links to biographical essays
- http://stevenestrella.com/composers/composerfiles/allegri1652.html

Allegri
- Brief biography from Classical Net's Basic Repertoire List with link to his Miserere.
- http://www.classical.net/music/comp.lst/allegri.html

Gregorio Allegri: A Potted Biography
- Brief life history with links to music and analysis.
- http://www.cappella.demon.co.uk/music/biog.html

Allegri's Miserere
- Notes on the work and on performance by the Sistine Chapel Choir.
- http://www.cappella.demon.co.uk/music/intro.html