We all know that the meta keywords tag has been all but depreciated in terms of search engines, but is this also the case with mediapartners-googlebot?
I thought about that and experimented with a publisher's meta keywords in order to land my client's ad into a specific page, but it didn't seem to work.
What did work is using on page data. Realistically, nobody can give a definitive answer, but after reading Google's AdSense overview, and reading the Applied Semantics whitepapers about their CIRCA technology, I don't think they use it.
So, that's my opinion- it isn't by any means definitive.
The award-winning and proprietary Google search technologies are the foundation for AdSense. We go beyond simple keyword matching to understand the context and content of web pages. Based on an algorithm that includes such factors as keyword analysis, word frequency, font size, and the overall link structure of the web, we know what a page is about, and can precisely match Google ads to each page.
The Linguistic Processing Engine works in conjunction with the Applied Semantics Ontology to understand the individual words and phrases in a unit of content, identify how they are being used, and determine the meaning(s) that best support the context of the content.
[edited by: martinibuster at 3:53 pm (utc) on Aug. 10, 2003]