Web 2.0

Design Patterns and Business Models for the Next Generation of Software

• Hints towards better World Wide Web. Websites enhance over 'read-only' websites (including web-blogs, services such as ebay and otehr web pages).
• "An idea in people's heads rather than a reality. It’s actually an idea that the reciprocity between the user and the provider is what's emphasized. In other words, genuine interactivity if you like, simply because people can upload as well as download", as kindly quoted by Stephen Fry.
• In the opening talk of the first Web 2.0 conference, O'Reilly and John Battelle summarized what they saw as the themes of Web 2.0:

• the web as a platform
  
• data as a driving force
  
• network effects created by an architecture of participation
  
• innovation in the assembly of systems and sites composed by pulling together features from distributed, independent developers (a kind of "open source" development)
  
• lightweight business models enabled by syndication of content and of service
  
• an end to the software-adoption cycle (the so-called "perpetual beta")
  
• software above the level of a single device, leveraging the power of the "Long Tail"
  
• ease of picking-up by early adopters