Google has released a variety of Google +1 buttons, similar to those currently in use by Facebook and Twitter. The +1 buttons provide a way for visitors to endorse and share web pages, blog posts and articles. Use of +1 buttons currently does not effect search engine rankings.
In order to increase your earnings with Google’s advertising network, AdSense, you first need to understand how the Google AdSense Ad Auction works.
Watch the video below to learn more about the AdSense Ad Auction from Hal Varian, Google’s Chief Economist.
This video makes it easier to understand just how volatile something like landing page quality is. I run a website that receives approximately 15-25K unique visitors during the warmer months and 7-12K/month the rest of the year. Just recently, I focused on improving the quality of all landing pages that contain AdSense ads and nearly doubled my earnings.
Also note the similarities to the Google AdWords PPC Ad Auction:
Quality Score
A. Ad’s past performance
B. Ad relevancy between ad keywords and landing page keywords
C. Landing page quality
Ad Rank
Ad Rank = MAX CPC X Quality Score
I like how (just like in the AdWords Ad Auction) a lower bidding ad can show above a higher bidding ad by utilizing quality landing pages and focusing on keyphrase relevancy. This means you don’t have to necessarily outbid your competitors to get the top spot; just run a quality campaign (don’t be evil).
Optimize AdSense
Your best bet for improving your AdSense earnings is to optimize your landing pages that contain AdSense ads.
Aside from focusing on key SEO metrics to improve the quality of your page, you may need to investigate usability testing (start with a Google Analytics heat map), ad placement testing (to determine optimal ad placement) and more. Lower those bounce rates and boost time on site!