If you monetize your website with adsense, chances are you sometimes see ads that are just not as relevant as you would like. Here is a little known secret to get better targeted adsense ads on your site.
Wrap your content area with the following commented HTML code. This is a legitimate and suggested code by Google.
<!– google_ad_section_start –>
<!– google_ad_section_end –>
I like to add <!– google_ad_section_start –> right above my heading and then end it where my content ends. This way you leave out all the ads and navigation and extras in side columns and footers.
