Cookies are small snips of information that some Web Sites store on your
computer. They can be useful in keeping track of your preferences when
visiting a particular Web Site. This information is usually harmless and
can only be used by the Web Site that issues the cookie in the first place.
If you have security or privacy concerns about cookies, you can set
Internet Explorer or Netscape to alert you and ask you if you want to accept
a cookie. You can always refuse them, although Web browsing may become more tedious.
If you would like an in-depth analysis of cookies, check out cookiecentral.com
Unofficial Netscape FAQ page that explains about cookies.