[img src="http://www.oreillynet.com/images/oreilly/tim_header_part1.gif" caption="" credit="" alt=""]Tim O'Reilly has just posted what will no doubt become a seminal article on the definition of Web 2.0. If you're still struggling to understand all this Web 2.0 stuff (and who isn't?) this should clear things right up. Here are the key aspects of Web 2.0, as Tim sees them:
* Services, not packaged software, with cost-effective scalability
* Control over unique, hard-to-recreate data sources that get richer as more people use them
* Trusting users as co-developers
* Harnessing collective intelligence
* Leveraging the long tail through customer self-service
* Software above the level of a single device
* Lightweight user interfaces, development models, AND business models