WEB 2.0 : Examples

• Web 2.0
  
  Advanced Search --> Google :http://www.google.com.au/
• Photo Sharing --> Flickr : http://www.flickr.com/
  Source file sharing --> BitTorrent : http://www.bittorrent.com/
  MP3 Music downloads. --> Napster
  Britannica Online --> Wikipedia :http://en.wikipedia.org/wiki/Main_Page
  personal websites --> blogging
  Social Networking site --> Facebook : http://www.facebook.com/
  page views --> cost per click
  screen scraping --> web services
  publishing --> participation
  content management systems --> wikis

WEB 2.0 : Definition

Web 2.0 is the era when people have come to realize that it's not the software that enables the web that matters so much as the services that are delivered over the web. Web 1.0 was the era when people could think that Netscape (a software company) was the contender for the computer industry crown; Web 2.0 is the era when people are recognizing that leadership in the computer industry has passed from traditional software companies to a new kind of internet Service Company. The net has replaced the PC as the platform that matters, just as the PC replaced the mainframe and minicomputer.
Looking at there is some help: http://en.wikipedia.org/wiki/Web_2.0