Google caffeine is out

http://googleblog.blogspot.com/2010/06/our-new-search-index-caffeine.html

The new search index Caffeine provides 50 percent fresher results for web searches than our last index.

Caffeine takes up nearly 100 million gigabytes of storage in one database and adds new information at a rate of hundreds of thousands of gigabytes per day. You would need 625,000 of the largest iPods to store that much information; if these were stacked end-to-end they would go for more than 40 miles.