Social networking was the most popular online content category in the world as of October 2011, accounting for 19% of all time spent online, or one out of every five minutes, according to a whitepaper by comScore.
That's more than triple the amount from four years ago, when it was 6% (in March 2007).
Below, additional findings from comScore's 43-country social media whitepaper titled "It's a Social World: Top 10 Need-to-Knows About Social Networking and Where It's Headed."
Worldwide Adoption
Social networking sites now reach 82% of the world's online population, or some 1.2 billion users around the world.
Penetration do levels vary slightly across English-speaking countries: Social networking sites reach 98% of online audiences in the US and UK; 96% in Australia; and 94% of Canadian online populations.
Shifting Geographic Footprint of Social Sites
As global social networking use continues to expand, there is an apparent shift in geographic footprint of some of the major sites.
The top-tier global social networks have been traditionally dominated by US-based sites, but the markets where these networks have the greatest reach today are no longer limited to the US, or in some cases, even to English-speaking countries.
LinkedIn, which overtook Myspace in 2011 to become the fourth largest global network, is an example of a top US-based social network attracting legions of users outside of its local base. Similar to Facebook and Twitter, most of LinkedIn's user base (61.8%) now resides outside the US.
Although LinkedIn generates most traffic via US users, it has its highest market penetration in the Netherlands, where it reached more than one-quarter (27%) of the Dutch online population as of October. Ireland was No. 2 in LinkedIn penetration (20.4%), followed by the US (18.7%), Canada (17.5%), and Denmark (17.4%).
World Leader: Facebook
Facebook has proven to be the indisputable global leader in social networking.
In 2010, Facebook was the category leader in 30 of the 43 markets for which comScore reports. Since then, it has taken the lead in six additional markets, spanning Asia, Latin America, and Europe.