Opting Out of the Major Ad Cookies
I found this tip using Google alerts. Apparently some of the major cookie droppers are catching on that we don't like to be spied on.
Website - Quote from the website
You can optout of accepting DoubleClick cookies at this location: http://optout.doubleclick.net/cgi-bin/dclk/optout.pl. When you OptOut your computer will then be given an OptOut cookie. This OptOut cookie will replace their active cookie that can monitor your surfing.
You can optout of accepting Atlas/AvenueA cookies by clicking this link http://www.atlasdmt.com/privacy/opting.asp. This link will check to see if you have an active cookie and switch it out for an OptOut cookie which will therefore no longer track your surfing.
To optout of accepting ValueClick Cookeis by following the directions at http://www.valueclick.com/privacy.html this link will privide you with an OptOut cookie.