Search Engine Search

A year or so ago, I had a bookmark to a page on one of the search engines that would let you search a list of what people did searches on. We used it to figure out what search phrases to pay for on PPC search results.

The idea was that say you had a site about "garage door openers", you could enter that, and it would return people's searches that matched that, with how many times people searched for it, ie:

Quote: Searched for "garage door opener"

garage door opener ... 10,302 seached made
garage door opener installation ... 2,034 searches made
replacement garage door opener ... 1,034 searches made
how to install a garage door opener ... 353 searches made

Does anyone know where searches like these are? I remember my cousin paid for a service about information on doing search engine promotion, but the link to this service was an open link on a search engine site, just not easily found.

-Greg

PS, in case you are wondering; the idea behind it was if you had a site on how to install a garage door opener, if you paid just for "garage door opener", you would have 10,302 people theoretically would be visiting your site, where only 353 people are looking for how to actually install them. On the 10,302 people, who knows how many are wanting to install one, so it may not be worth the higher price for such a general term.