Google's Caffeine search index goes live | ZDNet: "Google on Tuesday rolled out its new Web search index, dubbed Caffeine.
With the new search index, Google is promising 50 percent fresher results and the largest collection of Web content.
In a blog post, Google said it rebuilt the search engine to capture real-time data, video and richer content. In a nutshell, Caffeine will continually index the Web."
