I was wondering where the following idea was on the scale that goes from "rubbish idea", through "yes, that's what we all do you fool" to "my God, that guy's a genius, I'm going to do that for my ad campaign right away"...
If I put the URL of the site into a keyword density tool such as goRank or whatever and get a list of the most common keywords on that site.
Then I put those words in as keywords in my Google Adwords campaign, ensuring that I will always be number one position on their site, for the minimum CPC.
Although no one would ever search those random words on Google, I have even better targetted traffic on this site (assuming I remember to allow AdSense!).
What are people's thoughts on this?
LC
If those random words are pretty obscure then you might get them for minimum CPC but perhaps nobody would be looking for them. If there are other Adwords advertisers, then ranking the ad involves its CTR and its CPC, so being #1 is not a given.
You seem to have mixed up many concepts, e.g. to get a list of probable keywords, you would use a keyword suggestion tool such as the one on Google or Overture, not a density tool, which at best simply rearranges words into so-called phrases that no human would use.
Perhaps you should re-state your theory using non-specifics such as "pretty green widgets".
The biggest impediment to getting it to work is that if the site is in your niche, they might very well block your ads from appearing.
Also, I think you give more credit to google's matching capabilities than it deserves. You seem to have an idea that it finds a basket of page terms and a basket of Adwords terms and finds a optinum intersection.
I think instead it uses a ranking approach of page terms (starting with title) sees if any ad has that term and proceeds down the list. In other words, I do not think google analyzes all of the ads keywords as a basket.