Auto parts online/Aftermarket

http://www.car-part.com/

http://www.rockauto.com/

http://www.buick-autoparts.com/

http://www.oreillyauto.com/

http://www.autozone.com/

http://www.advanceautoparts.com/

http://www.cskauto.com/

http://www.napaonline.com/

People Search on the Web

http://pipl.com/

http://www.123people.com/

Lists of stock/futures exchange holidays

http://stockexchangeholidays.com/members/InteractiveCalendar.aspx 

http://www.csidata.com/exchangeholidays.html

http://www.saxobank.com/?id=2074

Patent busting websites

http://www.articleonepartners.com/ get up to $50000 bounty for busting existing patent

http://peertopatent.org/ community review of patents before issuance

http://www.linuxdefenders.org/ open source related patent reviews

Generating white(/pink/brown/blue/violet) noise with your computer

While there are all kinds of hardware based "white noise" generators are out there, having one installed in your computer could offer a nice personal privacy bubble. Some choices are:
"white noise" generator with sox for Linux
White Noise CD
simplynoise
Serene Sound
Burninwave Generator (read disclaimer first)
thefreesoundproject (white noise)
audio system test files
AMS (audio masking system)