
Surprised no one recommended this feature but it needs to be implemented in a way so as not to distract the user from the main goal of selling a domain.
An easy way to implement this is to enable adding JS (javascript) tags in a defined area below the main description (less preferred) or by utilizing the whitespace under the CTA buttons (more preferred).
An advanced way is to enable using tag IDs with 3 to 5 of the top ad monetization platforms including use of custom ad banners.
This will need to be integrated into the settings as a set of options specific for each existing or new template as each template layout will require a particular set of position options depending on the type of monetization and layout selected by the user.