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.
Nowadays Facebook is becoming one of the largest social media site in the world. As of 3rd October 2013, there are 500 million People use facebook and more than 250 million people use facebook from th... eir mobile device. This Infographic show how many people use Facebook (As of 3rd Oct 2013 update).