Robert_Charlton - 4:54 am on Sep 14, 2012 (gmt 0)
Google indexes 20 billion pages per day
Here's some more context for this. It's apparently from a Google Blog post on energy sustainability...
An update on our carbon footprint and sustainability efforts
Google Europe Blog
Wednesday, September 12, 2012
The Internet continues to see explosive growth: we’ve found over 30 trillion unique URLs on the web, up from 1 trillion in 2008. Our servers index 20 billion pages a day, receive 100 billion search queries a month, and support 425 million Gmail users—among many other services....
The figures are astonishing. I remember when there was debate going on about whether Google had managed to index 8-billion pages total.