Some webmasters like to place a lot of advertising on their website to earn more money than usual. While getting income with your website is good, this is do not the right thing to do. No way. Well, except if you just become selfish and think in the short term.
To begin with, let's say that the users of your website will do it. hate is. And the more you hate your ads, the less they will see it, consider it and click on it. So, this rules out when starting any strategy to make money using CPC, while it is much more profitable than CPM.
Then, advertisers also hate it. If you do too much, you'll get less revenue per ad, even if you get more money in general. But this will only work in the short term, since in the long term, you earn more money using CPC than any CPM you can expect.
There are also adblockers. Every webmaster who places too many ads somewhere, slowly pushes more people to develop, contribute, grant money and use ad blockers. Every. Advertisers are aware of that too.
So you want a good strategy? Do not do that Be smarter, make people like your ads, not the other way around.