You already know, because I have commented many times, that one of the things that you can not do in WordPress.com is to insert ads to make money with your blog but in reality it is not quite true.
According to rules for using WordPress.com you can not insert ads, charge for content or affiliate links on your site but there are exceptions. One of them is to create a VIP account like big companies and reputed blogs, but if you do not want to pay this extra and, above all, if your site has more than 25,000 page views per month, you can use the program from Ad Control and share 50% gains with Automattic using AdSense and Skimlinks .
So you know, if your traffic is generous you can also win money with your blog on WordPress.com, although this is always better option …
Although my mouth hurts to say that you should not open a blog or website to earn money but that should come later, when you really have something to offer, something for which the people do not mind suffering the ads, it is clear that there comes a time when one wants to at least offset the costs of hosting and domain, then surely you will need, or you will be good, some method to insert ads in your blog and manage them correctly.
I, as always, would run the risk of encouraging you to do it with code, but I understand that there are fantastic plugins with which manage advertising in your WordPress we will see a good amount of them. They are not all because there are many who do practically the same, it is a selection of the best.
AdsPress is another great blog template Oh Blog in which, apart from an excellent design, a series of files have been included in which monetization is greatly facilitated, earn money, with your blog . In addition, you have the PSD file of the logo so you can adapt it to your own image for the blog.
As you can imagine, we have translated it for you.
Very interesting and complete this Free eBook that shows you the whole process of creating blogs in WordPress for making money online .
Much has been written about this subject but Caroline Middlebrook approaches it from a point of view of who is not yet a WordPress user, and explains all the steps from the very creation of the blog, its own installation … and much more.
Actually, what he has done is to translate his own experience of installing and running his own blog, and he does it in a Free eBook that you can download from this link (664Kb PDF), they are 43 pages full of good advice.