You probably know already the "google zeitgeist"
that lets you see trends in what your fellow Google-oids are searching for:
Google Zeitgeist
(I can see the German version, hope, you get your local google as well!)
But do you know the Google Viewer? Here is the intro "The Google Viewer displays the pages found as a result of your Google search as a continuous scrolling slide show. You can view your search results without using your keyboard or mouse and you can adjust the speed with which the images move across your screen. Each image of a page's contents is accompanied by a short "snippet" describing that page."
Google Viewer