Placing ads in POIdo is efficient because:

• Advertisers pay only for verifiable target actions of users;
• Virtual billboards can be placed where no real-world billboard can be placed;
• Ads are contextual, so only interested users will see them;
• Ads are location-based, so only users within the ad display range will see them.

Depending on the type of device there are the following ways to display ads:

• On a screen with a map as text (static or crawling) or a virtual billboard (a digital version of a real billboard);
• On an address search page or any other text or graphic page of an application as text, crawler, banner or logo;
• As a static or interactive object opening a pop-up window with a description of the advertised object and action options. For example: call (with a phone number), order a service, add to tabs, see the next level of info.