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.
Most of us already know that Facebook is the top social network on the web. It's a thriving beast of a social networking site on the web with over 1.59 billion monthly active users as of December 2015 and over one billion that log on daily (according to Facebook itself). Statista shows that Facebook Messenger, with tons of cool features, is the second most popular messaging app behind WhatsApp.