There's money. Then there's Moolah. Which is another way of saying the kind of money that makes it all worth while! :)
What are your suggestions and initiatives for improving AdSense earnings in 2014?
Here are mine!
1. Transition to Mobile First templates
A good user experience is not only good for ranking purposes but I believe it's good for obtaining repeat traffic, word of mouth, site/brand loyalty, help decrease broken site experiences and more clicks (more money).
Make no mistake, if your site isn't optimized for mobile there's a good possiblity it is broken for some of your visitors. That's money you will not ever have a chance to earn again. Gone. At a dinner party over the weekend a parent related the experience of her teenager who was asking why so many sites were broken on her tablet computer. Which led into a discussion of browsers and which one works best. It's a common experience and for 2014, if your site is not optimized and tested for a wide range of tablets and browsers then you are not going to make as much money as you could have.
Ever wonder about the hole your earnings have disappeared into? This is one of them. Fix it.
2. Investigate this Schema stuff!
Trick to Google Ranks - Using Semantic Best Practices [webmasterworld.com]