GOOGLE SECTION TARGETTING:
The HTML tags to emphasize a page section take the following format:
<!-- google_ad_section_start -->
Relevant ads to the site content plays an important role to boost your adsense earning
<!-- google_ad_section_end -->
[B]Suppose you do not want to display ads relevent to "AdSense'. You can de-emphasize it by adding (weight=ignore) to the starting tag. So it will look like[/B]
<!-- google_ad_section_start(weight=ignore) -->
AdSense
<!-- google_ad_section_end -->
your final code will look like the following.
(emphasized)
<html><head><title>Section targeting</title></head>
<!-- google_ad_section_start -->
your target text
<!-- google_ad_section_end -->
</body>
</html>
Or(de-emphasized)
<html><head><title>Section targeting</title></head>
<body>
<!-- google_ad_section_start(weight=ignore) -->
your target text
<!-- google_ad_section_end -->
</body>
</html>
You can use section targeting to make suggestions about as many sections of a page as you like. It may take upto 2 weeks to display relevent ads to your site content.