For those that are concerned about privacy online cookies are one of those things that threaten that privacy that you seek. Some of you may know that you should delete off some of your cookies every so often because of a lot of them are tracking where you go all over the internet spying on you. If you don't know how to delete them here is an easy way in firefox just go to tools-->Cear recent history remember to click on cookies and select how long you want to delete for. If you don't want to do that every so often because you may forget firefox makes it easy to set settings on how often and what to delete.
If you open up your preferences and go to privacy you can change those settings. I will show you what i have set.
Though this still does not fix it. Websites are still finding ways to track you and ads are also.
you may have heard of flash cookies before as from this article or many others. These cookies try to bypass the usual deleting methods and keep tracking you with out you knowing. If you like to delete them or even see which sites are tracking you well you can go here. you may be surprised at how many are keeping info on your computer and a good bit of those are tracking you or your kids.
well i hope this article helps you help you take back your privacy from corporations and back in your hands.