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

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

Pyrofx Fireworks Portal  
   News and information on pyrotechnics and fireworks.
   http://www.pyrofx.com/

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/

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

British Pyrotechnics Society  
   A source of information and interest to people interested in the operation, and construction of fireworks and pyrotechnic devices.
   http://www.ukrocketry.co.uk/pyrotechnics

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

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

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

Magnesium  
   Properties of magnesium, magnesium alloys and applications to pyrotechnics.
   http://worldaroundus.org

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

Thermodinamics of explosion  
   Scientific model of explosion thermodynamics.
   http://mychemistry.net/

The Fireworks Website  
   Fireworks listing, tutorial, downloads, etc.
   http://www.raytechanimation.com/index.php

Chemistry of Pyrotechnics  
   This site explains how various firework colors are made.
   http://more-pyrotechnics.com