Is there anyway to block out certain content that adwords bases their words on?

For example, i have a blog about topic A. And once in awhile I might say something about topic B. The unfortunate thing is that sometimes google adwords will have all these ads all over the page talking about topic B. Is there anything I can do about this?

 

Add the code below.

<!-- google_ad_section_start -->
keywords you want ads for
<!-- google_ad_section_end -->

<!-- google_ad_section_start(weight=ignore) -->
words you do not want ads for
<!-- google_ad_section_end(weight=ignore) -->

 

You may also want to consider using negative keywords. Just use a - (minus) symbol before the keyword, so the negative keyword free would look like this:

-free