Thanks for your email regarding our policies.
You're welcome to place Google ads or an AdSense for search box on any
website that complies with our program policies (
http://www.google.com/adsense/policies 
).
We encourage you to review the policies and use your best judgment to
determine your site's compliance. If you suspect that an implementation
may violate the spirit of one of our policies, we'd recommend you err on
the side of caution and modify the implementation.
Please also be aware that due to the large volume of emails we receive, we
can't accommodate individual requests to review publishers' sites.
Thanks for your understanding.
For additional questions, I'd encourage you to visit the AdSense Help
Center (
http://www.google.com/adsense_help 
) or the official AdSense blog
(
http://adsense.blogspot.com? 
utm_source=txft ). Alternatively, feel free
to post your question on the AdSense Help Forum (
http://groups.google.com/group/adsense-help?utm_source=txft 
).
Sincerely,
Sunil
The Google AdSense Team