5 .- One account, multiple sites
Another important issue to use this service of Google Adsense is to be careful to have many sites with a single account. You might take a while to keep in good condition and efficiently each site, because the returns of a site can affect the entire account.
I remember at one time had two blogs and good income generated at the beginning, but after a while the second blog generated very little revenue and harms the entire account. I really do not even found out much about it because now managing one blog, but I have understood that just the poor performance of a site can affect the revenue of the entire account.
6 .- Do not you cancel the account
Well, obviously is more to explain that Google has an entire system by means to avoid click fraud. This would be for example that the website owner himself is one hour by clicking on their ads.
Nor can encourage people to click on ads. This is also punishable by Google.
There are many other ways, we all know, that could threaten our own, so it is best not mention because I believe that most need to understand how we are.
Credit to: Mariano Cabrera Lanfranconi
image source: /www.rajputbrotherhood.com/img/2010/june/google%20adsense.gif