Google is sending out invites to participate in the Adsense webinar being held on Dec 21st.
All adsense publishers should be receiving an email.

--- Excerpt from the email that I received ---

Dear Publisher,

Want to learn about new AdSense features?

Join our AdSense publisher webinar. Our experts will take you through AdSense referrals, Onsite Advertiser Sign-up, new reporting features and more. We'll also leave time for members of our team to answer your AdSense questions.

ADSENSE NEW FEATURES WEBINAR

Date and time
------------------------------

Wednesday December 21st
9:00 A.M. PST/ 12:00 PM EST/ 5:00 P.M. GMT

Registration
-----------------------------------------------

Unfortunately, space is limited and registration will be taken on a first come basis. Please note that participation is by invitation only.

To register, click on the link below or paste it into a new browser window:

http://googleonline.webex.com/googleonline/onstage/g.php<omitted>

Once you register, instructions for participation will be sent to you via email.

If you can't make it this time, but want us to keep you informed about upcoming webinars, please reply to this email and let us know.
We'll let you know if another event is scheduled.

Sincerely,

The Google AdSense Team