A banner ad, or a web banner, is an advertisement displayed into a web page. The advertisement consists of an graphic display or of a multimedia object (usually created using Flash).
A web banner or banner ad is a form of advertising on the World Wide Web delivered by an Ad Server. This form of online advertising entails embedding an advertisement into a web page. It is intended to attract traffic to a website by linking to the website of the advertiser. In many cases, banners are delivered by a central ad server..
Banner ads are image-based rather than text-based and are a popular form of website advertising. The purpose of banner advertising is to promote a brand and/or to get visitors from the host website to go to the advertiser’s website