Facebook second biggest Web brand in US

Facebook has been the second biggest visited Web brand in the US during 2011, reports said quoting data from Nielsen.

Not surprisingly, Facebook is the most visited social network.

Google was the most visited US web brand in 2011.

With 137.64 million US visitors per month, Facebook narrowly beat Yahoo!, which saw an average of 130.1 million visitors to its sites each month.

Microblogging site Twitter.com attracted 23.6 million unique visitors.