It’s a very long and thorough article that breaks down by different regions as well as niches.
For those still parking names the article might help with some keyword tweaks and for those acquiring names in these niches the data will prove handy.
From the article:
The Best AdSense Niches in the US
In the United States, insurance is easily the highest paying niche, which has an average CPC of $17.55. All types of insurance fall under this niche, including health, home, auto, and life insurance. Businesses are willing to pay more for clicks on an insurance ad because they can have an incredibly high ROI, even with much higher CPCs.
After insurance, the best niches are as follows:
- Online education at $12.08 a click.
- Marketing and Advertising at $6.45 per click.
- Legal averaging $6.11 per click.
- Internet & telecom at $4.96 per click.