Google's Caffeine search index goes live

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. When information is updated, Caffeine will absorb the changes into the index.

Among the key stats Google outlined about Caffeine:

• Every second Caffeine processes thousands of pages in parallel.
• The new index takes up 100 million gigabytes of storage in one database.
• Caffeine adds hundreds of thousands of gigabytes of data per day.