Banner ads are one way on ensuring this becomes a reality from a possibility. Basically these image based promotions are usually done in a web presence through ad networks where managing the campaign is the priority. Delivered through a line of partnering websites or publishers is what allows this style of advertising to become more popular and thus more widely used. If the business owner chooses to display the ads on specific categories at the publishers website the added interest garnered will be from the highly targeted visitors who are interested in that particular category. This application also works when the ad is listed in under many categories and this then will generate possible interest from the whole network.
The benefits may include a wider audience being sought and derived. When this happens it would mean more people are privy to the product or service because of the banner ads being made available for viewing from a larger platform. This also allows for the allocations to be set up a Geo targeting which the focuses on the main areas of marketing and getting customers.