Web 2.0 – a simple definition

Web 1.0 was focused on a relatively small number of companies and advertisers producing content for users to access—some people called the web at the time the “brochure web.”  Web 2.0 involves the user—not only is the content often created by users, but users help organize it, share it, remix it, critique it, update it, etc. One way to look at Web 1.0 is as a lecture, a small number of professors informing a large audience of students. In comparison,Web 2.0 is a conversation, with everyone having the opportunity to speak and share views.  Web 2.0 is built on technologies like Ajax, Javascript and XML, and functions more like a desktop-based application rather than a static application.

Web 2.0 embraces an architecture of participation—a design that encourages user interaction and community contributions.


Many Web 2.0 companies are built almost entirely on user-generated content and harnessing collective intelligence. The significance is not just in having user-generated content, but in how it is used. Google—the leading search engine and Internet advertising company—sends its users to user-generated websites by considering what users collectively have valued in the past. For websites like MySpace®, Facebook®, Flickr™, YouTube and Wikipedia®,users create the content, while the sites provide the platforms. These companies trust their users—without such trust, users cannot make significant contributions to the sites.

Web 3.0, aka Semantic web, will be the next step , and  already we see the first hints of the semantic web in the mainstream: the photo tagging feature on Facebook is a great example. You upload a photo, tag the photo with your friend’s name, and Facebook automatically notifies that person that there’s a new picture of them in your photo album. It’s a lightweight vision of the future, where the context adds value.


4 thoughts on “Web 2.0 – a simple definition

  1. Semantic web la imper pli loin encore. Parcequi it’s up to the users pou tag zot content. So users should be responsible taggers and web sites can’t force tagging.


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