Use it as a lead magnet/free mini course. You can also use an autoresponder as a lead magnet to attract new subscribers to your email list. This is commonly done in the form of a free “mini course”, or a free “challenge”, which promises to deliver a series of emails containing lessons (or other valuable information) over the course of several days or weeks. There is a high perceived value with a mini course or a challenge like this, which makes it a very effective lead magnet.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.