Web pages for future display in the browser versus downloading information every time from the Web, greatly increasing the speed of page viewing. Chat - online interactive communication on the Web. Clickstream - the electronic path a user takes while navigating from site to site as well as from page to page within a site. Cookie - a file on a computer that records where the user has been on the Web. Some Web sites use cookies to identify visitors to that site, enabling more personalised information to be served upon return to the site.
Users can prevent Web sites from assigning cookies by adjusting options within the client's browser.
Copy - printed text in an advertisement. Creative - the concept, design and artwork in an advertisement. CPM - cost per thousand impressions. The price paid by advertisers for a content site displaying their banners a thousand times. D Demographics - common characteristics used for population segmentation.