What is web 2.0?

The concept of "Web 2.0" began with a conference brainstorming session between O'Reilly and MediaLive International. Dale Dougherty, web pioneer and O'Reilly VP, noted that far from having "crashed", the web was more important than ever, with exciting new applications and sites popping up with surprising regularity. What's more, the companies that had survived the collapse seemed to have some things in common. It was almost as though the dot-com collapse marked some kind of turning point for the web.





Like many important concepts, Web 2.0 doesn't have a hard boundary, but rather, a gravitational core. It is defined by a number of key principles including:





1. The Web as a Platform


2. Harnassing Collective Intelligence


3. Data Over Processing Power


4. Software That is Delivered as a Service, Not As a Product.


5. Lightweight Programming (RSS, AJAX)


6. Software Above the Level of a Single Device


7. Rich User Experiences





Taken a step further, it meant a transformation...





Web 1.0 Web 2.0


DoubleClick --%26gt; Google AdSense


Ofoto --%26gt; Flickr


Akamai --%26gt; BitTorrent


mp3.com --%26gt; Napster


Britannica Online --%26gt; Wikipedia


personal websites --%26gt; blogging


evite --%26gt; upcoming.org and EVDB


domain name speculation --%26gt; search engine optimization


page views --%26gt; cost per click


screen scraping --%26gt; web services


publishing --%26gt; participation


content management systems --%26gt; wikis


directories (taxonomy) --%26gt; tagging ("folksonomy")


stickiness --%26gt; syndication

What is web 2.0?
an upgrade from the inferior 1.0