Google 2nd page might be useful
I always consider the search results that came in Google's first page.. most of the times my search ends to this first page.
but when you know that Google rank the pages by the number of links to that page from other web sites you may know that this limiting your search with the first page isn't the right thing to do.
for example when you search for Data Access Application Block you will find Enterprise Library 2.0 article listed on the first page and the 3.0 version article listed on the second page which make since as the older version was around longer and most likely to be lined to.