Contemporary A Cappella Resources on the Net

http://www.casa.org/
The main site for the Contemporary A Cappella Society has news from all over the world, and also has discussion forums.

http://www.rarb.org/
The Recorded A Cappella Review Board has lots of CD reviews and ratings, and also has a discussion forum.

news:rec.music.a-cappella
There is an international a cappella newsgroup at rec.music.a-cappella. If you have a newsreader (e.g. Outlook Express), you should be able to use this link. If that doesn't work, you can always use the free newsreader at Google.

http://www.live365.com/cgi-bin/directory.cgi?genre=search&searchdesc=Cappella
Live365.com carries dozens of a cappella "radio stations". Follow the link above, or go to live365.com and search for "Cappella". Each station carries several hours of music, played in rotation.

http://www.singers.com/radio

Primarily A Cappella has put together some fun streaming audio "radio shows". You need RealPlayer to listen to the programs. Of particular interest is a two-hour interview with noted vocal arranger Kirby Shaw. In the second half of the interview, he gives valuable advice to new arrangers.

Purchasing CDs

http://www.a-cappella.com
Mainely A Cappella has a huge selection of CDs and tapes, as well as songbooks, individual arrangements, books and videos. Most of their CDs have music samples that you can listen to over the web. CASA members get a discount.

http://www.singers.com
Primarily A Cappella also has a huge selection of CDs, tapes, songbooks.

Purchasing Songbooks and Arrangements

See the Purchasing CDs section above, plus these sites:

http://www.arts.unco.edu/UNCJazz
The UNC Jazz Press has many a cappella and accompanied arrangements. Almost all of the a cappella arrangements are also available at Mainely A Cappella and Primarily A Cappella, so you should only need to go to the UNC Jazz site if you are looking for arrangements with instrumental accompaniment.

http://www2.uiuc.edu/ro/xchords/main.html
The University of Illinois Xtension Chords (a men's group) make almost all their arrangements available for a low price. Of course, you'll probably need to buy their CDs to know which arrangements you want. :)

.http://www.casa.org/uaas.html
The Ultimate A Cappella Arranging Service has several professional arrangers on staff, and can arrange just about any song in just about any style. Discounts available to members of the Contemporary A Cappella Society.

http://homepage.mac.com/gillylal/primrose/index.html
Primrose Music (in the UK) offers a list of ready-made arrangements and customized arrangements of any song submitted.

Free Arrangements on the Web

http://www.casa.org
Yes, your best source for free arrangements is the CASA arrangements library. Check the CASA website for current information on availability of arrangements.

http://www.akhphd.au.dk/~bertho/acappella/

About a dozen arrangements, most have a MIDI file you can listen to.

http://www.sreal.com:8000/~div/a-cappella-arrangements/
About 20 arrangements for mixed groups, originally written for Shere Khan of Princeton University.

http://www.forevervain.com/a-cappella/
About 50 arrangements for various voicings.

Technical Information

http://home.comcast.net/~jfoner/actt.htm
Joel's A Cappella Tech Tips - a great informational resource for aspiring groups who are unfamiliar with working with sound systems, sound technicians, and other aspects of performing on microphones.