Catholic Online offers a number of useful pages on angels. Angels:
Bible Concordance gives scripture passages on angles taken from
the Old and the New Testaments. Their angel
page further provides clear information on angels. Topics listed
on this page include: What are angels? - Angel Encounters - How
do we know angels exist? - The Nine Choirs of Angels - Guardian
Angels - Prayers to the Angels of God - Angels of the Church (from
Revelation)The Fallen Angels.
Angels A Biblical
Perspective is yet another site providing extensive information
on angels. The table of content reads as follows: Angels are Warriors
- Angels are Protectors - Angels are Messengers - Angels are Sent
as a Result of Prayer - Angels are not to be Worshipped - Counterfeit
Angels - Summary - Supporting Scriptures
For contemporary Church documents, you can consult the following
resources: The
Catechism of the Catholic Church contains a number of passages
on angels and their role in the history of salvation.
The extensive EWTN Library contains the text of six general audiences
given by John
Paul II on angels.
Finally,
if you are seeking for illustrations of angels in art there are
a number of excellent websites you can explore: the webmistress
of The Text this Week has
assembled an impressive number of links to paintings with biblical
themes including those on : angels,
Gabriel, Lucifer,
Michael, Satan.