Web 3 0 is a new generation of World Wide Web, allowing web-2. 0 hand techniques related semantic Web, which allows humans and machines to access and use data stored on the Web. Web-3. 0, machines capable of performing tasks that require human intelligence, will reduce the time and effort over the Internet. Web 3 0, whose goal is to make Internet a better, more intelligent network is a precursor to a full semantic web, and the successor to Web 2 0. Web 2 0 specialized in making use of networks to help by providing information about the interaction of people and promote their views on issues such as wikis, blogs, social networking sites, etc. Examples: Wikipedia, Blogger, Digg, Technorati, http://Del. icio. us, StumbleUpon, Myspace, Facebook, Flickr, and much more. But the Web 3 0 to provide the Internet through its own intelligence machinery, software access to information (search engine spiders, etc.) to understand what the data itself. It allows them to get on the ground the best knowledge of the Web to our needs and can affect a lot better than now. Need a Web-3. 0 If you are looking for specific information to Google, the biggest part of what we get on the first page has links to pages that do not use the information to us. Website to get you we could we had to use different keywords, or go to the second or third SERP. Nothing in our ingenuity, we did not get the required results. Program does not see what people can. Google is a stupid machine against the discharge of all the Web-scanning keywords. When it detects a keyword, the site indexed, it provides a link for you. It is up to you to decide if the site is really useful or not.