Jetpack offers Premium and Professional plan users exclusive access to WordPress.com’s advertising program, which allows you to focus on building your site and creating great content while earning income from your traffic.
If you are regularly publishing content and building an audience for your site, finding a way to generate income from it is ideal. Using the official advertising program from WordPress.com, you can choose to display relevant, high-quality ads from approved sources and earn income when your readers click on them.
If you have a Premium or Professional plan, you can activate this feature from the Traffic tab within Jetpack > Settings. You can then check in on your earnings at any time via the View your earnings link.