Google has been holding webinars for both new and expert AdSense publishers. The next webinar is tomorrow, Thursday, at 6.30 pm PDT. It is on the topic of getting paid.
The topic is named "Understanding the payment cycle" and is described as:
De-mystifying the AdSense payments system. Learn about the various payment options and understand the payment cycle.
One of the most discussed topics in the various AdSense forums are about payments, so a webinar devoted to payment topics, makes a lot of sense.
Keep in mind, Google caps the attendance to 500 people. So go register for the event now and don't forget to be there.
AdSense experts will be on hand to answer questions submitted from the audience.
Forum discussion at Google AdSense Help.