From web 1.0 to web 4.0: the evolution of the web

The Internet is active and very dynamic. It has enabled an unprecedented evolution in telematics and information systems, and in turn a global revolution in the use of technology and digital citizenry. Although many see the technologies that have driven this revolution as inventions of the past 1 to 2 decades, quite a few had their genesis before the Internet became mainstream. In exploring the history of the Internet, we see how it has facilitated innovations across all areas of technology and social life, and with a little imagination are perhaps able to get a glimpse of what is to come. A lot of technologies related to the Web environment have emerged in this area: Blogs, Wikis, Social Networks, Content Managers, etc. Finally, it's important to understand the concept of semantic annotation and information extraction using technologies such as rich snippets, SPARQL, GRDDL etc., tools that enable better management and knowledge recovering. Some examples of application of web 3.0 are: Linked Open Data, semantic search engines, semantic web services, social Semantic Web, semantic wiki etc.