Human: What is the difference between an ad and an ad banner? Assistant: 
The main difference between an ad and an ad banner is that ads are typically longer, more detailed, and contain a call to action. Ad banners are usually shorter and display only the headline of the product or service being advertised. Additionally, ads can be placed on websites, in newspapers and magazines, radio, television, and other forms of media. Banner ads are generally displayed within webpages or emails.