Web 3.0 Web 3.0 is one of the terms used to describe the evolutionary stage of the Web that follows Web 2.0. Given that technical and social possibilities identified in this latter term are yet to be fully realised the nature of defining Web 3.0 is highly speculative. In general it refers to aspects of the internet which, though potentially possible, are not technically or practically feasible at this time. Web 2.0 Web 2.0 is a broad umbrella concept covering a great number of areas ranging from web site design and software architecture to new business models. It combines a wide range of technological and social trends which form the new Internet and a new class of web applications.
Technologies themselves are not what Web 2.0 is about. Revolutionary new ideas are at the bottom of Web 2.0. It embraces quite a number of social phenomena like social networking, user-generated content and collective intelligence. And technologies which become popular in the Web 2.0 era are merely the means to make it easy for everyone to participate, share and create. Therefore blogs, social bookmarking and networking sites are some of the most popular online destinations nowadays.
Since 2004, when the term “Web 2.0” was used for the first time, it has transformed from an IT buzzword into a mainstream trend which affects both individuals and enterprises. Developing software, as well as doing business, in the Web 2.0 era demands from us to adjust to the realities of the new Web. Technology overview The sometimes complex and continually evolving technology infrastructure of Web 2.0 includes server-software, content-syndication, messaging-protocols, standards-oriented browsers with plugins and extensions, and various client-applications. The differing, yet complementary approaches of such elements provide Web 2.0 sites with information-storage, creation, and dissemination challenges and capabilities that go beyond what the public formerly expected in the environment of the so-called "Web 1.0".
Web 2.0 websites typically include some of the following features/techniques. Andrew McAfee used the acronym SLATES to refer to them:
Search
The ease of finding information through keyword search which makes the platform valuable.
Links
Guide to important pieces of information. The best pages are the most frequently linked to.
Authoring
The ability to create constantly updating content over a platform that is shifted from being the creation of a few to being the constantly updated, interlinked work. In wikis, the content is iterative in the sense that the people undo and redo each other's work. In blogs, content is cumulative in that posts and comments of individuals are accumulated over time.
Tags
Categorization of content by creating tags that are simple, one-word descriptions to facilitate searching and avoid rigid, pre-made categories.
Extensions
Automation of some of the work and pattern matching by using algorithms.
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