Pronic Electronics
Manufacturers of rocker switch, push switch, toggle switch, slide switch, and inlet socket. UL, CSA,VDE recognized amongst others. Based in China and Taiwan.
http://www.pronic.com.tw/

CDEGS Grounding and Earthing Analysis
Complex grounding and earthing design, electromagnetic compatibility, interference analysis and lightning and surge studys
http://www.sestech.com

Omega Red Group Ltd
Omega Red Group is the UK market leader in Earthing and Lightning Protection. With branches in Edinburgh, Manchester, Nottingham, Bristol and London, the company handles major projects across the country for the construction, rail, power, telecoms and water sectors. From an initial survey to design and installation and through to ongoing testing and maintenance, Omega provides a comprehensive service that protects sites from lightning strikes, dangerous voltages and electrical surges.
http://www.omegaredgroup.com

Switch Back
Presenting lots of reasons to switch to Macs. [Flash]
http://www.ubergeek.tv/article.php?pid=55

Eppol - Switch-off
Switch parody site in Italian (but still worth viewing.)
http://www.phenelope.com/eppol/

Switch Zoo
At Switcheroo Zoo you can make new animals, play games, solve jigsaw puzzles, learn about animals, join a zoo quest, watch movies, and more!
http://www.switcheroozoo.com/

Zhejiang Huanghua Switch Factory
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http://www.huanghua.com/

RFC 1434
Data Link Switching: Switch-to-Switch Protocol. R. Dixon, D. Kushi. March 1993.
http://tools.ietf.org/html/rfc1434

RFC 2174
A MAPOS Version 1 Extension - Switch-Switch Protocol. K. Murakami, M. Maruyama. June 1997.
http://tools.ietf.org/html/rfc2174

Switch
This is a program that lists all open windows and allows the user to switch between them.
http://www.starfighter.acornarcade.com/mysite/utilities.htm#switch