Figures released by industry tracker comScore revealed that Google bagged more than one million unique visitors in the month of may 2011. Google managed to get 8.4 percent more unique visitors than the previous month.
The software mammoth Microsoft settled at the second spot with 905 million unique visitors in May with a 15 percent growth. Google's close rival Facebook ranked third with 714 million visitors with 30 percent growth rate, which was double than the two top rank holders.
Another search engine company Yahoo got fourth rank with 689 million users, up by 10.8 percent over May 2010. In Oct 2010, Facebook kicked Yahoo to fourth spot and it seems like the world's largest social networking site is close to Microsoft.
ComScore said that its estimates are based on its "global measurement panel" of two million Internet users. ComScore started measuring global unique-visitor traffic on websites in 2006.