Web sites send small text files to your computer to keep track of your informaton.

They are particularly useful when you want a Web site to auto-sign you into a registration site.

However some web sites also use cookies to track your interestes for advertisement purpose.

With Delete Cookie, you could select which cookies you want to erase and which one you want to keep.

You could also find detail infomation in cookies like hit times, modified date and expiration date.