javascript used by adsense

[hermes]

Has anyone looked into the google adsense code (it is javascript code) - analysed it to see what info it pulls and sends back to google. I cannot find any such analysis on the web.
You can of course get hold of this adsense javascript code by looking at the source code of any page with adsense adverts.

One aspect that I am interested in is how google finds what your content is (so that it knows what are the most appropriate adverts to show on the page) - does it do it "on the fly", so that when someone looks at your page, as the page is loading, the page content is sent back to google, they analyse this content for keywords and then send back the appropriate adverts to display?

OR is it the case that when someone clicks on an adsense advert - the page content is sent back to google. They then analyse this content (for keywords) - refining their knowlegde of your content so that they can provide more appropriate adverts the next time. So, in this way, with each click, they update their knowledge of your content.

OR - do they simply find the content of your site by crawling it with a robot. Perhaps there is an adsense specific google robot?

[ncw164x]

>>Perhaps there is an adsense specific google robot

Look in your sites log file for "Mediapartners-Google/2.1" it has been nick named "mediabot", this bot visits your page so the ads match what's on that page, well 99% of the time at least.

[hermes]

Is mediabot the only way it looks at content. There is no:

"when someone clicks on an adsense advert - the page content is sent back to google. They then analyse this content (for keywords) - refining their knowlegde of your content so that they can provide more appropriate adverts the next time. So, in this way, with each click, they update their knowledge of your content."

?