Search Engine Marketing is the process of strategically placing a company’s listing through paid methods like Google AdWords Search and Display ad campaigns.
Display Ads can be text, image, or video and will appear on all available sites hosting Google AdSense. Your display ads can be:
personalized based on site content and user interest
remarketed to users who have visited your site as they browse sites within the Google Display Network
intelligently scale ads against keyword lists
restrict your ads to sites where they will only appear within the landing page visible section of a browser.