Facebook has become the most-visited site in the US after beating former titleholder Google.
The popular social networking page toppled the search giant after accounting for 7.07 per cent of all US web traffic compared to Google's 7.03 per cent, web analysts Hitwise revealed.
"It's definitely a big moment for Facebook, even though they beat by a small margin," News.com.au quoted Hitwise's Matt Tatham as telling CNN.
He added: "People want information from friends they trust, versus the anonymity of a search engine."
The research did not include other Google services such as Gmail and YouTube.