I have lot of backlogs of comment answers. In fact each answer can be a blog article itself. I have sorted few good questions and will answer them as blogs.
One visitor has asked today, “can you explain, why the heck I get Tramadol spams more? I had no idea what is Tramadol. I think as a doctor you can answer the reason.”
No Rachele, there is no relation between medical knowledge and explanation of Tramadol like spams. It has only relation with Ad revenue.
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Why you get spams exclusively on few topics like Tramadol, Viagra, Loss of Hair
To understand why you get spams on these topics, you need to understand the Keyword value which we have explained in this article.
Most of these Keywords are said to be of higher keyword values : people “believe” one click will make $ 10 or more…
Wow! $ 10 at one click ?
Yes, some of these keywords has high value. However, only selected higher niche websites actually gets the full value. You can test by creating a blog with higher keyword value : over 80% chance is, you will get hardly 2 cent / click !
So, still why you get spams for these topics?
Most of these blog posts are actually created by using automated softwares which scraps from other blogs. There are softwares to auto-comment, falsely pingback your blog.
Almost all of these blog owners actually have some good blogs or forums. They use this system as a hit or miss to make money. As, in one Virtual Dedicated Server, you can host several domains, they creates few more.
Is this system works?

Probably not. Google AdSense and Double Click Network will not give everyone CPC of $ 40 everyday.
Instead, try to write good content, you might be offered some special helps from Google AdSense team if your blog is really outstanding.
