In these schemes, people select common terms to describe information they find or post on certain Web sites. (scientificamerican.com)
If you don't want to receive cookies, you can change your browsers to notify you when cookies are sent and then refuse cookies from certain web sites (or altogether). (pulitzerarts.org)
A cookie is a small data file that certain Web sites write to your hard drive when you visit them. (life-insurance-online.co.za)