Cookienator is a tool that will help you remain anonymous from search engines such as Google and other notorious web-usage trackers such as Doubleclick or Omniture.
Many websites install cookies in your browser, and these little bits of tracking data will be used to identify you for as long as you keep using your computer. In the past few years I have been alternating between religiously clearing my cookies from time to time, or neglecting to do so with hope that these corporations will live up to their vague promises of doing no evil.
Then I decided that it'd be more productive to automate the whole thing, so I spent a good chunk of a weekend creating the first version of Cookienator, a simple program that will leave most of your cookies alone but will remove the ones that put your privacy at risk.

Cookienator helps you remain anonymous from major search engines, ad networks and other web-usage trackers. Unlike most other cookie deletion tools which will delete all your cookies unless you manually exclude certain sites, Cookienator will only delete cookies that are primarily designed for user tracking. It comes with a pre-configured list of the most notorious sites and you can easily customize the list by adding or removing sites. If you want, the program can automatically check for new tracking cookies on a regular basis and delete any that are found. Cookienator works with Internet Explorer, Firefox, Google Chrome, Safari and Flash cookies.

Cookienator is lightweight; it's a single executable that you install on your computer. When run, it will tell you how many cookies it would like to remove.

The software will not remove all your cookies. Many of them are used for legitimate reasons such as storing your preferences or logging you in automatically. Cookienator is configured to clean up crumbs left on your computer by a select few websites: Google, AOL, Yahoo, MSN, Webtrends, Omniture, Doubleclick, Intellitxt, Advertising.com and others. This is a very arbitrary list, and it can probably be extended to include many more.

The software will not hang around in memory. If you set it to check for evil cookies periodically, it will very briefly run when you log in to your computer. If it finds that it's not yet time for a cleanup it will silently exit - if there's work to do it will perform the cleanup and let you know about it with a non-obtrusive balloon tip in the systray, then exit.
It is recommended that you close your browser(s) before running Cookienator.
So, Why Cookienator
Recently there has been much hoopla in the news about search-related privacy, or rather the lack thereof. The whole thing started about a year ago when AOL released three months worth of searches made by 650,000 of its users. The resulting uproar led to the firing of the responsible researcher, his boss, and AOL's CTO. The real problem, the problem that really irks privacy advocates, is not that the data was made public - the problem is that it's being gathered in the first place. It's being gathered and used in some way.
Just what exactly can such a profile tell about you (Yes, call it what it is, it's a profile.) Put your tinfoil hat on for a moment. Your search history: what interests you, what problems and what fantasies you have. Your IP address: which countries you take your laptop to, which hotels you like to stay at, which companies you visit. With more and more sites using online analytics services, for example Google Analytics, the data will also include which sites you visit and what exactly you do there. Throw in the tracking capabilities that Google gained with the recent Doubleclick acquisition, and what they already had with Adwords, and things start to look really scary.
Put all this together and they pretty much have all your life in their computers. Governments are often accused of being invasive to your privacy, but in most advanced democracies you can at least petition to find out what exactly your country retains about you. On the other hand, the laws governing the gathering and use of personal data by corporations are spotty at best, especially when it's about supposedly anonymous information.

The license of this software is Freeware, you can free download and free use this browser tool software.