This is a quick tip I’d like to share to those running WordPress with themes that do no have a “single.php” page. The problem with those themes is that whatever ad you paste in the index.php will both appear on the main page and the full entry page. Thus, if you want to use the high performing ad sizes (336×280), it’ll ruin your blog’s layout. Others resort to just using the standard 486×60 or use the comments template instead (which doesn’t completely solve the problem).
If you want your ads to show up just in the full entry page and not in the main page, you will need to do some simple hacking which involves a little PHP:
if($single)
echo(”
<script type=\”text/javascript\”><!–
google_ad_width = 336;
google_ad_height = 280;
google_ad_format = \”336x280_as\”;
google_ad_type = \”text_image\”;
google_color_border = \”FFFFFF\”;
google_color_bg = \”FFFFFF\”;
google_color_link = \”333333\”;
google_color_url = \”999999\”;
google_color_text = \”333333\”;
//–></script>
<script type=\”text/javascript\”
src=\”http://pagead2.googlesyndication.com/pagead/show_ads.js\”>
</script>
“);
?>
The PHP function if($single) is just a condition that tells the page to show the ads (echo function) only when it is on the full entry page.
Take note of the backslash (\) added just before each double quotes (“) in your original Adsense codes.
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take a look at my blog on adsense. It covers how google javascript works and how you can maximize your ad revenue by behavorial targeting ads. It is a series of tutorial like articals. you comments are welcome.
I think the more recent archives earn more than new entries, specifically those around a month old.
I am actually doing a month-long experiment to see if the archives are earning mroe than the current entries. A quick PHP snippet would do the trick, I suppose.
This works best in varying the appearance of your entry pages. I think we should compile more adsense tricks. ;)