"cheapo" default ads?

bargain-basement ads on un-mediabotted pages

[ExpLarry]

A day or so ago I put up the AdSense code on a newish site which the Mediapartners bot doesn't really know about. I went through the logs and found it had visited some pages in the past, presumably thanks to someone using Opera, and those pages showed up with decent ads.

However on the vast majority of unscanned pages I see no public service ads or replacement URLs but instead a single (occasionally two) genuine looking ads. I've seen four different ones thus far advertising:
- books by a "pilot author" (by far and away the most frequent)
- a London based 0800 number
- an "Actresses: Intensive hands-on acting program"
- and one other I just forgot.

Only occasionally do I get the specified ad replacement code. These ads seem to be popping up everywhere else and are quite annoying because they are completey irrelevant to the page (although the one about hands-on acrtesses did appear on a page containing references to Bill Clinton, which made me snigger slightly ;-) It's as if google is selling un-media-botted space cheap to people who don't care about context. The ads are replaced by better ones once the page has been visited.

Has anyone else seen this?

[linear]

I noted it as early as February. See message 3 here [webmasterworld.com] for the details.

[ExpLarry]

Ah, thanks. I think "run of site" was the terminolgy I was looking for.

Anyway they seem to have disappeared for now, but for the day or so when they were there I had a lousy CTR...