Banner is the primer means of organizing advertising in Internet. Banner carries a set of graphical, textual or multimedia (sound, video and animation) information, advertising a specific kind of goods or services. The main criteria of defining banner efficiency is CTR (clicks through ratio).

However, the most effective means of advertising in Internet is E-mail, due to the high CTR it has. A commercial proposition could be sent to a million of users (Internet users) just in one click on the button SEND, substituting the proper names of the receiver in each particular case.