Online Advertising formats

• Floating ad: An ad which moves across the user's screen or floats above the content.
  
• Expanding ad: An ad which changes size and which may alter the contents of the webpage.
  
• Polite ad: A method by which a large ad will be downloaded in smaller pieces to minimize the disruption of the content being viewed
  
• Wallpaper ad: An ad which changes the background of the page being viewed.
• Trick banner: A banner ad that looks like a dialog box with buttons. It simulates an error message or an alert.
• Pop-up: A new window which opens in front of the current one, displaying an advertisement, or entire webpage.
• Pop-under: Similar to a Pop-Up except that the window is loaded or sent behind the current window so that the user does not see it until they close one or more active windows.
• Video ad: similar to a banner ad, except that instead of a static or animated image, actual moving video clips are displayed.
• Map ad: text or graphics linked from, and appearing in or over, a location on an electronic map such as on Google Maps.
• Mobile ad: an SMS text or multi-media message sent to a cell phone.
• Streaming video 
• Streaming audio