Of the 1.1 billion people ages 15+ worldwide who accessed the internet from a home or work location in May 2009, 734.2 million visited at least one social networking site during the month, a penetration of 65%, according to data from the comScore World Metrix service. comScore also reported that among 40 individual countries reported by comScore, Russia has the world's most engaged social networking audience, with the average online Russian spending 6.6 hours and viewing 1,307 pages per month.
Brazil ranked close behind Russia at 6.3 hours, followed by Canada (5.6 hours), Puerto Rico (5.3 hours) and Spain (5.3 hours).
The US ranked at #9 in terms of social network engagement, with an average of 4.2 average hours and 477 pages consumed per visitor. more