Pyrotechnics

IPS - International Pyrotechnics Society - The Society for International Pyrotechnicians. Each year the IPS organises a symposium.
http://www.intlpyro.org/

About.com: Chemistry of Firework Colors - Discusses incandescence and luminescence and provides table of compounds used to produce firework colors. Links to related sites included.
http://chemistry.about.com/science/chemistry/library/weekly/aa062701a.htm

Pains Wessex Australia Pty Ltd. - Manufacturer and supplier of civilian and military pyrotechnics, marine distress signals and sea search and rescue equipment including EPIRB's.
http://www.painswessex.com.au/

PGI - Pyrotechnics Guild International - Worldwide membership organization dedicated to the advancement of safety, skill, and artistry in pyrotechnics. For all ages, both professionals and amateurs.
http://www.pgi.org/

Pyro Universe - History of fireworks, safety tips, pyrotechnics glossary, forum, chat room, and tips for putting on your own display.
http://www.pyrouniverse.com

Pyro Purity Test - How much of a pyro are you? Take this test to find out.
http://www.armory.com/~spcecdt/pyrotech/pyrotest.html

Pyrotechnics - Stories about pyrotechnics, experiments, photo galleries.
http://www.armory.com/~spcecdt/pyrotech/

Classifications of Fireworks in the U.S. - Bob Weaver explains the classification codes.
http://www.fireworksland.com/html/classifications.html

APA - American Pyrotechnics Association - APA is trade association of the United States of America
http://www.americanpyro.com/

IPSUSA - International Pyrotechnics Seminars, USA, Inc. - International Pyrotechnics Seminar USA, Inc.
http://ipsusa.org/index2.htm