Ballistics Software  
   Macintosh PC ballistics software. Chronographs for rifle and handgun shooters
   http://www.shootingsoftware.com/index.htm

Kinetic Pulse: A Study in Bullet Impact  
   Compares kinetic energy with momentum to evaluate bullet performance.
   http://www.xmission.com/~fractil/math/kp.html

How Do Bullets Fly?  
   Long document about the basics of bullet motion through the atmosphere.
   http://www.nennstiel-ruprecht.de/bullfly/index.htm

Basic Ballistics  
   A beginner's page for ballistics, introducing terms and concepts without complicated formulas.
   http://members.aye.net/~bspen/ballistics.html

ABAL: Department of Weapon Systems and Ballistics  
   Belgium. Academic education, industry certification, applied research : interior, exterior, terminal ballisitcs. Bulllet-proof jackets and glass. Forensics
   http://www.abal.rma.ac.be

Close Focus Research  
   CFR Small arms ballistic testing and research services. Testing to various international standards.
   http://www.closefocusresearch.com/

Ballistics Science  
   Scientific approach to ballistics including forces and momentum consideration.
   http://balistictheory.net

Ballistics  
   Internal, external and terminal ballistics. Some theory on forces and moments.
   http://ballisctics-theory.com/