The terms Internet and World Wide Web are often used in every-day speech without much distinction. However, the Internet and the World Wide Web are not one and the same. The Internet is a global system of interconnected computer networks and the Web is one of the services that runs on the Internet. The Web is an application running on the Internet. Viewing a Web page on the World Wide Web normally begins either by typing the URL of the page into a web browser. The web browser then initiates a series of communication messages, behind the scenes, in order to fetch and display it.

The creation and usage of the web is changed after the 'dot com bubble' in 2000. The new term Web 2.0 is commonly associated with web applications which facilitate interactive information sharing, interoperability, user-centered design and collaboration on the world wide web. The technology used for the web didn't changed but the way the software developers and end users use the web has changed. The boundary between Web 2.0 and its predecessor Web 1.0 is not always clear. But some differences are given below:

Web 1.0 sites are static. They contain information that might be useful, but there is no reason for a visitor to return to the site later. An example might be a personal Web page that gives information about the site's owner, but never changes. A Web 2.0 version might be a blog or MySpace account that owners can frequently update and users can respond.

Web 1.0 sites are not interactive. Visitors can only visit these sites but they can not contribute to the sites. Most organizations have profile pages that visitors can look at but not impact or alter, whereas a wiki allows anyone to visit and make changes.

Web 1.0 applications are proprietary. Under the Web 1.0 philosophy, companies develop software applications that users can download, but they can't see how the application works or change it. A Web 2.0 application is an open source program, which means the source code for the program is freely available. Users can see how the application works and make modifications or even build new applications based on earlier programs. For example, Netscape Navigator was a proprietary Web browser of the Web 1.0 era. Firefox follows the Web 2.0 philosophy and provides developers with all the tools they need to create new Firefox applications.