Mason Industries Inc, For over 45 years, Mason Industries has been the industry innovator and leader in the field of vibration isolation and seismic restraint for hvac equipment and ductwork, industrial machinery, room and building sound and vibration isolation and bomb blast isolation offering a complete selection of free and restrained spring mountings, air springs, neoprene and rubber mountings, spring and neoprene hangers, architectural isolation products, inertia bases, rooftop base curbs and neoprene or braided steel flexible connectors and neoprene expansion joints, product information, selection guidelines, specifications and details for spring and neoprene mountings, hangers, seismic restraints, flexible connectors and floating floor, wall and ceiling systems

National Geographic provides free maps, photos, videos and daily news stories, as well as articles and features about animals, the environment, cultures, history, world music, and travel.

ChildFund, formerly Christian Children's Fund (CCF), is dedicated to helping children in need. ChildFund believes all children deserve an environment of hope, especially starving children living in poverty.

Award winning Materials Science & Engineering educational software, interactive simulations, animations and videos. Currently available modules: Ferrous Metallurgy, Diffraction and Solidification. Version 2.1 of Materials Science on CD-ROM, contains 18 modules. There is also a help/tutorial program and an updated glossary. Introduction to crystallography, Introduction to electrons in crystals, Introduction to point defects, Dislocations, Introduction to phase diagrams, Thermodynamics of phase diagrams, Atomic diffusion in metals and alloys, Nucleation in metals and alloys, Introduction to electron microscopes, Image fundamentals, Beam-specimen interactions, Using the SEM , Aluminium Alloys: Systems , Aluminium Alloys: Strengthening , Aluminium Alloys: Processing , Mechanics of composite materials, Deformation of Polymers , Rubber Elasticity, Glossary