What milestone number of page views did Facebook reach in June 2011, according to Google?
Answer: 1 trillion page views
And the total number likely is higher than 1,000,000,000,000 views because that only accounts for traffic reported by Google's planning tool for advertisers in its list of most-visited sites.
According to Google's numbers, Facebook.com accumulated 780 million unique visitors in June and reached in some manner almost 47 percent of the world's Internet users.
Facebook's 1 trillion page views was 10 ten times more than Youtube, the second most-visited website.