Feb 11
8
Public service ads (PSAs) are being retired in AdSense and will no longer be a backup ad option. Google is now trying to figure out new options. If you’re a website publisher and want to avoid having a blank space where a PSA used to appear, you can select and edit your ad unit on the “My Ads” page (for the old interface, edit ad settings by going to “My Account,” and to to “Manage Ads”)
See the rest here:
PSAs No Longer Brought to You by Google AdSense