I just came across the following page within the google adwords help
Are there any types of websites that merit low landing page quality scores? - AdWords Help
| Website Types to Avoid |
The following website types will be penalized with low landing page quality scores. If we receive complaints about ads for websites of this kind, they will not be allowed to continue running.
What are your thoughts?
Interesting is another part on this page where google suggest to be cautious with "ebook", "get rich quick" sites and affiliates. So ... Adwords isn't something for Internet Marketeers anymore?
kind regards from Vienna