Adnove is an Extenso module for managing ads on your site. It is available in your admin interface in the right menu (adnove button - see screenshot on the left). Adnove is not just an advertising display tool. A simple image widget or a code widget could have played this role.
With Adnove you can define the validity period of an advertisement according to the number of displays (using the cost per thousand displays - CPT-), or per date, and have detailed statistics (number of displays and clicks) of your ads. It is also a tool that could be improved to meet the specific requirements of your project.