Google Retires Hosted Domains

Google is retiring the ads program for websites that have no content.
Letter from Google about retiring their domain squatter advertisements.

Hi,

We’re contacting you because you’re using AdSense for Domains to monetize your undeveloped domains. After evaluating the benefits of our partner network, we’ve decided to retire the Hosted domains product within AdSense. Going forward, undeveloped domains will only be served through our existing AdSense for Domains distribution network.
Our records show that 7 of your Hosted domains will be affected by this upcoming change, which will follow the schedule below:

March 21: You’ll no longer be able to create new Hosted domains
April 18: Hosted domains will become inactive and it’ll no longer be possible to earn from them
June 27: Hosted domains will no longer be available in AdSense accounts

To continue monetizing your undeveloped domains, you can migrate your domain portfolio to any domain parking provider. Find out how in our Migration Guide:
Migration Guide

Please note that this upcoming change won’t affect any other AdSense products you’re currently using or the availability of other products to you. In addition, reporting on your Hosted domains will remain available throughout the schedule above and for a period following the retirement.

For more information see the Help Center. We appreciate your understanding and thank you for your patience as we continue to develop new features and offerings within AdSense.

Sincerely,
The Google AdSense Team