I remember there is a way to direct adsense spider to search on certain keywords therefore the adsense displayed will based on those keywords. Can anyone let me know how to do that? Thanks.
Okay, I'm able to find out that right after i made this post <!-- google_ad_section_start --> <!-- google_ad_section_end -->
You can also set to ignore: <!-- google_ad_section_start(weight=ignore) --> More information is available here: http://google.com/support/adsense/bin/answer.py?answer=23168