The global internet audience has now surpassed one billion visitors, according to web measurement firm comScore.
The one billion figure covers those 15 and older viewing the web from home and work computers.
The Asia-Pacific region accounted for the highest share of global internet users at 41%, followed by Europe (28%), North America (18%), Latin-America (7%), and the Middle East & Africa at 5%.
The figures exclude traffic from public computers such as internet cafes or access from mobile phones or PDAs.
"Surpassing one billion global users is a significant landmark in the history of the internet," said Magid Abraham, president and chief executive officer at comScore. "It is a monument to the increasingly unified global community in which we live and reminds us that the world truly is becoming more flat."
He said, "The second billion will be online before we know it, and the third billion will arrive even faster than that, until we have a truly global network of interconnected people and ideas that transcend borders and cultural boundaries."
China represents the largest online audience in the world, with 180 million internet users, representing nearly 18% of the total worldwide internet audience.
China is followed by the US (16.2%), Japan (6%), Germany (3.7%) and the UK with 3.6%.