Since the question of chromakey seems to come up fairly often on the board, here are several links to interesting and informative sites I found on the web while gathering material for an article. Most are authorative and well illustrated.

1. Alice in Bluescreen Land: The art and science of optical compositing http://www.mnstate.edu/johnsdan/dtv/keying/bluescreen.pdf

2. The Blue Screen Page http://www.seanet.com/Users/bradford/bluscrn.html

3. Editing for the Deaf Viewer http://www.sign-lang.uni-hamburg.de/SigningBooks/SBRC/Grid/d71/guide13.htm

4. Filmtools http://shop.store.yahoo.com/cinemasupplies/chromkeyfab.html

5.24 Phat Tips for Chromakey Lighting http://www.digitalproducer.com/2003/12_dec/tutorials/12_22/cw_ckeyphat_tips.htm

6. Replacing Photographic Backgrounds: Ultimatte and Other Great Techniques http://www.epi-centre.com/reports/9807bjp.html

7. Build a Blue Screen Tutorial http://216.239.39.104/translate_c?hl=en&u=http://www.jushhome.com/Bluescreen/Bluescreen.html&prev=/search%3Fq%3Dchromakey%26start%3D10%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26sa%3DN