Game Timer
An application for the PalmPilot which takes the place of a mechanical game timer (such as a chess timer). Freeware (source available).
http://www.eshayne.com/GameTimer/index.shtml

555 Timer
Short Tutorial on the Classic Timer, the 555. With animations.
http://courses.ncsu.edu:8020/ece480/common/htdocs/480_555.htm

555 Timer
Applications of the most common IC timer chip.
http://www.ee.ed.ac.uk/~kap/Hard/555/aplications.html

Auto Shutdown Timer
Auto shutdown timer is simple and easy to use software that auto shuts down your computer at a time period you choose.
http://www.lullsoft.com/

555 Timer
555 Timer Tutorials, timer, timing circuit, 555, ne555, ne556, time, 555 timer, 556 timer,ra, rb, astable, monostable, delay, oscillator, rc oscillator, vco, voltage control, rc,
http://www.williamson-labs.com/480_555.htm

RFC 2988 - Computing TCP's Retransmission Timer
Proposed standard.
http://tools.ietf.org/html/rfc2988

HitVortex
Traffic Exchange!
http://www.hitvortex.com/

HitKingdom
Hit Kingdom is a Free, Professional Traffic Exchange Offering Quality Hits to Your Site. For every three sites you visit using our traffic exchange your site will be visited twice. In addition to our traffic exchange we offer free classifieds, games, discussion forum and more.
http://www.hitkingdom.com

Hitpulse
Free Traffic Exchange. Join free, surf and earn traffic to your own website, buy traffic, hits, free to join, free traffic, #1 traffic exchange on the net, Logiscape Technologies Inc
http://www.hitpulse.com/

HitShark.com
Manual surf. 2:1 ratio, 15 second timer. 4 Referral levels.
http://www.hitshark.com