Facebook is one of the most popular Internet sites admin | July 15, 2017 | TOP-15 most popular Internet sites | No Comments Facebook.com 840 million unique visitors. Social network. Related Posts Microsoft is one of the most popular Internet sites No Comments | Jul 15, 2017 Yahoo is one of the most popular Internet sites No Comments | Jul 15, 2017 Bing is one of the most popular Internet sites No Comments | Jul 15, 2017 Wikipedia is one of the most popular Internet sites No Comments | Jul 15, 2017 About The Author admin