---A Web 2.0 is the network as platform, stradding of all connected devices. Its applications are those that make the most of the important advantages of that program. It deliver the software as a continually-updated service that gets better as the more people use it , consuming and remixing data from multiple sources, including the individual users, while providing their own data and services in a form that allows remixing by others, creating network effects through an "architecture of participation," and going beyond the page metaphor of Web 1.0 to deliver rich user experiences.
---So "Web 2.0" is a term that describes the current state of the Internet which has evolved from what it was before; a collection of staid, static websites mostly put up by companies and people wishing to advertise, promote, and market their wares and knowledge on the web into what it is now. In fact, the most collaboration and sharing now that includes audio, video, animation and other formats found to be unusable in the 1990s. As Web 2.0 describes an Internet, people and users from different cultures can interact and use the Internets' applications, information and add value to such applications and contents its because the power of the web mainly lies in the hands of its users.