Are you a Google+ user? and want to learn adsense tips on Google+ then a good news for you i.e. Adsense recently (on 28th March, 2012) launched Google+ AdSense Page. See the snap shot of official Google+ AdSense Page.
Introduction to Adsense Google+ Page
Welcome to the official Google+ page for AdSense. Google AdSense is a free program that enables publishers to earn revenue by placing relevant ads on a wide variety of their online content, including websites, site search results, and mobile webpages and apps.
If you have not join Google+ AdSense Page then Join Adsense Google+ page right now and learn some good concepts about adsense while using Google+