Eng-Tips

Provides links to technical support forums for a range of engineering professions.
http://www.eng-tips.com/

Edinburgh Engineering Virtual Library

A guide to engineering, mathematics and computing information on the internet.
http://www.eevl.ac.uk/

International Engineering Consortium

A nonprofit organization dedicated to catalyzing technology and business progress worldwide in a range of high-technology industries and their university communities.
http://www.iec.org/

University of Texas Engineering Education Station

Resources for learning about or teaching engineering for students of K - 12 grade and beyond.
http://www.engr.utexas.edu/k12/

Mechanical Calculators - How Do They Work?

Some examples of mechanical calculator designs with 3D graphics, plus mechanical calculator simulator.
http://www.icpnet.pl/%7emgrzegorz/index_english.html