Mailers track their mail in order to verify content within the direct mail package and to determine the length of delivery time.

Any form of communication that reaches the general public and carries advertising. Direct response media would include: space advertising, direct mail, TV, radio, take-ones, card decks, package inserts, cooperative efforts, on-line shopping services.

See List Services

Used in search engines, an advertisement displayed on the results page of a search, specific to the searched term. Also referred to as keyword advertising. Advertisers pay search engines to target their ads and only display the banners when relevant keywords are searched on by a user. Keyword advertising on the search engines enables an advertiser to target a specific audience. For example, if a user searched on the term "digital camera" the ads may be for electronic boutiques or camera shops that sell digital cameras. The meta ads are displayed on the dynamic pages that result whenever the keyword "digital camera" is searched on.

Short for Multipurpose Internet Mail Extensions, a specification for formatting non-ASCII messages so that they can be sent over the Internet. Many e-mail clients now support MIME, which enables them to send and receive graphics, audio, and video files via the Internet mail system. In addition, MIME supports messages in character sets other than ASCII. There are many predefined MIME types, such as GIF graphics files and PostScript files. It is also possible to define your own MIME types. In addition to e-mail applications, Web browsers also support various MIME types. This enables the browser to display or output files that are not in HTML format. MIME was defined in 1992 by the Internet Engineering Task Force (IETF). A new version, called S/MIME, supports encrypted messages.