I chose blogs that sold because the data has been checked and verified and should be accurate.
I focused on sites monetized with: Adsense, Amazon associate links, affiliate links, Amazon FBA and E-commerce
From the data I've detailed following:
Average RPM ( Net profit/pageviews X1000)
Median RPM (top 20% and bottom 20% removed)
BECPC - Break Even Cost per Click
Niche (where possible)
How much it sold for.
The result of this data is that I have a good idea how much different types of sites in certain niches make.
For example, an amazon associates site that deals in household apliances should have an RPM of around $220 as there are several sites in that niche earning that amount.
Here are the resulting Data for RPMs
The average RPM is:
Amazon FBA $616.88
The Median RPM is:
Amazon FBA $587.43
E-commerce $223.02 (this is much lower from the average because the top site was earning an RPM of over $7000)
Amazon and affiliate incomes when used as a secondary source of income.
For me, Amazon FBA looks to be the strongest business model that I looked at.
If you want to build a site to sell then aim to sell when a site is around 18 month old.
18 month old sites look strong especially if monetized with Amazon Associate links The average sale price was just below Amazon FBA sale prices. $212K Vs $228
Finally, I am not a statistician I analyze this type of data to help me get a handle on whats working. Hence the Break even figure I included, if I can find a niche where I can get traffic at half the RPM Ill be a happy geek!