New figures from Gigya obtained by TechCrunch show that Facebook accounts for 44 per cent of all content shared online in terms of the methods used by web users to distribute links to others.
Gigya provides social content sharing tools to thousands of large websites and says that Facebook is the most popular when it comes to sharing links with others.
Twitter followed in the rankings, accounting for 29 per cent of all links shared in the last 30 days, with Yahoo! representing 18 per cent and MySpace nine per cent.
Another content sharing tool provider, AddThis, submitted its own statistics to TechCrunch, with Facebook still coming out on top.
The social network remains the most popular link distribution channel for web users across the ten of thousands of sites served by AddThis, followed by emailing content, printing out articles and using Twitter to share links.
"It makes sense - people prefer to broadcast links rather than share them one at a time via email," says Erick Schonfeld of TechCrunch.
Facebook's own figures suggest that its users share five billion content items every week through the social network.
These include links, blog posts, news stories, notes and photo albums.
Meanwhile, recent figures from web analytics firm Compete revealed that Facebook has overtaken Yahoo! to become the second the most popular site in the US.
It attracted almost 134 million unique visitors last month.
