Today I observed an awesome feature of Google Publisher Tool bar ad-on for Google Chrome browser that could be VERY useful for webmasters who are publishers for Google Adsense and continue to earn from the Adsense program. The plugin once installed and logged in will allow you to know the performance of each and every ad unit on your published on your web pages, right from the front end of your website.
If you observe the below screenshots, you can see the performance of certain AdBlocks that I have enabled on my website at this point and thereby analyze and improve the positioning of the ads on a real time basis to improve your earnings.
This feature also allows you to check your earnings for the day right from the browser tool bar where it shows the performance report. The advantage is that you do not have to log in to your Adsense dashboard at all to see your ad performance on a daily basis. Hope this small insight will help you save some time and effort in staying on toes to know your performance.
To add one more important point to the advantages of the Adon, it also does not allow you to click your own ads :). Thats a great feature because it reduces the chances of getting your account banned by accidental clicks.