Here are some links that may be helpful to you.

• Periodic Table of the Elements at Los Alamos National Laboratory

• Code of Federal Regulations: Titles

• Energy Citations Database (ECD)

• Goodrich Universal Propulsion Company

• Leach International

• Shilla Industries

• AutoLiv

• Life Sparc

• Special Devices Inc.

• Piezo Technology, Inc.

• Scirus - for scientific information

• Setra

• GlobalSpec