Question: Explain the difference between a banner ad, pop-up ad, preroll video ad, widget, and search marketing. Banner ads are strip messages placed in high-visibility areas of frequently visited Web sites. A pop-up ad is a separate window that pops up with an advertising message. Preroll video ads are brief marketing messages that appear before expected video content. Widgets are tiny interactive applications Internet users can copy and add to their own pages to play music, video, or slide shows. Search marketing is an arrangement by which a firm pays a search engine-such as Google-a fee to make sure the firm's listing appears toward the top of the search results.