Web 3.0 is a more user-centric, more user-friendly, more transparent, and more secure Internet. The old Internet is being rebuilt, and the world interconnection is entering a new stage of development. Bill Gates wrote in an article entitled "Content is King" in 1996 that open information and communication will greatly enhance the status of citizens. The Internet as we know it today has greatly expanded the access to information and changed everything in society. So what can the world's a...