WSJ.com - Personal Technology: "For years, the competition in the search business has focused on finding things on the Web quickly and accurately. And Google has been widely perceived as the winner.
But the competition in search is taking a new turn. Instead of focusing solely on accuracy and speed, new search services -- including a new one from Google itself -- are working on searching things other than Web sites, and on presenting search results in novel ways.
I've been testing four of these new search products -- Google's new Desktop Search, Amazon's A9 search site, Yahoo's My Yahoo Search and a service named Clusty from a small company called Vivisimo. I like them all, though whether they work for you will depend a lot on your personal working style and the way you want your information served up."