Replacing PSAs with forum-targeted banners

is this feasable?

[SEO_Report]

Hi All,

Half of the time, adsense shows PSAs in my forums.

I'd *love* to specify alternate ads, but there is no simple way to target these ads to specific forums (ie. Dreamweaver tutorial ads shown on HTML forums while link popularity compaign ads shown on SEO forums)

Has anyone done this before?

Thanks in advance,
-k

[danec]

Robert, I've done exactly what you describe by passing a value to the alternate ad url with php. I use code that looks like this:

google_alternate_ad_url = "http://foo.com/alt-ad.php?<? print $page-topic;?>";

This way, I can control exactly which alternate ad shows up on which page.