Thanks Guard Dog,
I got the idea now, especially the last question.
In that case, I only use syndicated feeds from websites and contents from wikipedia or open source.
Like the rest of the affiliates here, I don't like spamming and copying. However, as human being we are likely to push to the absolute limit.
Anyway, many thanks.
I couldn't believe there is a site like this, helping affiliates. Normally, affiliates fight one another

. The best section I found here is BAD affiliate programs.
We should work together to eliminate them

and spammers as well.