Bev McDevitt's Sacred Music
http://www.bevmcdevitt.com/
Chant links
http://comp.uark.edu/~rlee/otherchant.html
Gentle Spirit Music
http://www.gentlespiritmusic.com/
Hymns Catholics like and dislike
http://www.americancatholic.org/Messenger/May1996/feature2.asp
John Michael Talbot
http://www.john-michael-talbot.org/
Oregon Catholic Press
http://www.ocp.org/
Prayersongs
http://www.prayersongs.com/