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.
Comcast is The World's Biggest Media Company of 2015: A Guide to Everything They Own. It's official: Comcast Corporation CMCSA is the world's biggest media company as of the end of 2015, beating out rivals like The Walt Disney Company DIS , Time Warner Cable TWC , and 21 st Century Fox FOXA . It is still the United States' largest broadband provider, with over 22 million high-speed Internet customers.