Google posted a new video series on explaining to users how AdSense works.

Here’s the first in the series on AdSense Tips: Different forms of invalid activity

In this video, we’ll explore a few different forms of invalid activity. To learn more about invalid activity and our policies, visit the Ad Traffic Quality Resource Center at https://google.com/ads/adtrafficquality or our help center at https://goo.gl/wgk3S