Google is having an AdSense webinar Wednesday, May 16th at 10:30am PDT. Google is calling it
Taking It to the Next Level: Improving Your AdSense Performance.
It will be one hour and Google states it will give tips and suggestions that Google says they have found to significantly improve AdSense performance.
Time will be left at the end to answer questions.
You can register for the webinar.
It will be recorded so you can view it later if you miss it.
Here is a Google link with more details, including the opportunity to register
Inside AdSense: You're invited!