The third generation of the Internet is closely related to blockchain technology and digital currencies due to its decentralization. Currently, Smart Contract and Defi technologies are examples of Web 3.0. Many projects in the world of digital currencies focus on Web 3.0 and its applications. In the following, many of these projects are introduced along with their users. Please note that we have no investment advice on these projects, and our sole purpose is to familiarize you with the functions of Web 3.0.