1 Canker sores are small, painful ulcers on the inside of the mouth, tongue, lips, or throat.  Symptoms of canker sores include small, painful, crater-like ulcers.
Facebook is the biggest social network on the web, both in terms of name recognition and total number of users. With nearly 1.8 billion active users, Facebook is a great medium for connecting people from all over the world with your business. And the site is not only the biggest network, but it's also arguably the most versatile one.
Meanwhile, social networks that get a lot of attention, like Twitter and Pinterest, are relatively small. Finally, we also see the eye-opening size of some China- and Russia-centric social media. In a new report from BI Intelligence, we compiled a list of the world's largest social networks. 1  Here is the ranking as of Oct. 30, 2013 (Ranked in terms of reported or estimated global Monthly Active Users or MAUs, unless noted): 2  Facebook (1.15 billion MAUs) 3  YouTube (1 billion MAUs) 4  Qzone (712 million total users), China.