Display ads have evolved from the basic form of banner ads. Nowadays, display ads come as:

• Static images – these are your basic banner or square ads that appear around the content.
• Text – these are text ads that are created by algorithms to make text ads relevant to the surrounding content.
• Floating banners – these move across the screen or float above the regular website’s content.
• Wallpaper – these appear and change the background of a website, filling the whole page.
• Popup ads – these are new windows that appear in front of the website content; newly opened window displays the full ad so visitors can see.
• Flash – these are moving ads that “flash” different content at the viewer.
• Video – these are small video ads that autopay or wait for the video to be played by the visitor.