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.
The Chinese tech giant that's perhaps best known across the English-speaking world is Alibaba, the world's largest e-commerce company. Yahoo famously owns a 15% stake that's valued at over $30 billion--far more than Yahoo's core business is now worth.