Impact Structures
In this Web site, you get varied informations on the geology, geophysics and petrography of impact structures (meteorite craters) including extensive visual material about impact rocks
http://www.impact-structures.com/

Impact DataSource
Impact Data Source is an Austin, Texas Economic Consulting Firm. Our company provides economic analysis, research, consulting, fiscal impact analysis, custom economic impact computer models, and more.
http://www.impactdatasource.com

Impact
An open source explicit finite time stepping element program suitable for simulation of dynamic events. Impact has several types of elements including shell elements and is easy to extend. Impact works well GID pre- and postprocessor and is programmed in Java.
http://impact.sourceforge.net

Burchell, Robert
Professor at the Center for Urban Policy Research, is the author of 25 books and more than 50 articles, is an expert on fiscal impact analysis, land-use development and regulation, and housing policy. Dr. Burchell co-authored the Development Impact Assessment Handbook for The Urban Land Institute. (Books: The Fiscal Impact Hand-book; The New Practitioner's Guide to Fiscal Impact Analysis; The Adaptive Reuse Handbook; The Environmental Impact Handbook).
http://policy.rutgers.edu/cupr/people/bioburchell.htm

Nanfang Machinery Co. Ltd.
Nanfang is a Taiwanese-owned enterprise manufacturing and selling air tools, air-tool parts and accessories.
http://www.sap-airtools.com.tw

Lippmann Milwaukee, Inc.
Crushing Equipment, Recycle Crushing Equipment, Impact Crushers, Jaw Crushers, Portable Crushing Plants, Portable Impactor Plants, Portable Jaw Plants, Systems, Feeders, Screens
http://www.lippmann-milwaukee.com

1908 Siberia Explosion: Reconstructing an Asteroid Impact from Eyewitness Accounts
Descriptions of the Tunguska impact event. Researched, written, and illustrated by William K. Hartmann.
http://www.psi.edu/projects/siberia/siberia.html

Textiles Online
Educational resource designed to enhance the understanding of textile manufacturing processes, their impact on the environment, and how to reduce that impact in the future. From E4S-Environmental Teaching Resources.
http://www.e4s.org.uk/textilesonline/index.htm

Asteroid Comet Impact Hazards
NASA Ames Research Center brings you reports, a Torino impact hazard scale, the latest news, and an image gallery.
http://impact.arc.nasa.gov

Impactika
Meteorites and minerals created by the impact of meteorites (tektites, impactites, impact glass) for sale from all over the world.
http://www.impactika.com/