Just recently (only noticed it in the last couple of weeks) Adsense has been under-serving on my most popular page.
All my content pages have two adsense panels (1 x 2 ads & 1 x 4 ads). This page of travel news items is loading only the 2 ad panel and with filler ads that have little or no keyword relevancy. It is as if it can't find anything in its ad inventory to match the page.
All my other pages are getting the normal, full service of relevant adverts.
That includes the other two high-frequency updated pages (bargains & new products/ideas). All three of these pages are updated daily or several times daily. All three have rss feeds, but the travel news page has more subscribers and by itself accounts for 35% of my inbound traffic - so it's having a bit of an effect on my overall adsense clickthrough rate!
Edited by nedguy, 27 September 2005 - 12:07 PM.