The earlier avatar, that is Web 1.0, would be clearly demarcated content which was fairly static. You could not interact with it, add your comments or leave your mark. You used the software or the content as is and could not collaborate with other users of the same content. If Double Click, Akamai, mp3.com, content management systems and page views are a few examples associated with Web 1.0, Google AdSense, BitTorrent, Napster, Wikipedia, blogging, cost per click and web services would comprise Web 2.0, explains O’reilly. For example, with BitTorrent, the service automatically gets better the more people use it. While Akamai must add servers to improve service, every BitTorrent consumer brings his own resources to the party.
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Co-founder of the concept, Tim Oreilly, founder and CEO of O’Reilly Media told Business Standard about Web 2.0 in his opinion. The easiest way to understand Web 2.0 is by comparison of Web 1.0 and Web 2.0.
According to the example, mp3.com is comparable to Napster in term of functionality. However, Web 2.0 provides a lot more interactivity and usability.