web 3.0 come
Monday, August 3rd, 2009微博客越来越火，围绕 twitter 已经成为了一个美丽的生态系统，感觉到 web 3.0 时代要来了。
看了一些相关资料，做了些对比：
Web 1.0 - as an information portal
- be the first to own the content
- divide www info useable directories
- everyone has their personal corner in the cyberspace
- lacks: context, interaction, scalability
Web 2.0 - as a platform
- focus on the power of community to create & validate (UGC, collaboration)
- tagging organization
- setting up “hooks” for future integration (RSS, API)
- lacks: personalization, true portability, interoperability
Web 3.0 - is semantic web
- HTML describes documents, while RDF describles things
- specs: RDF (FOAF, DOAP), GRDDL, W3C, microformats
- instances: Google, Twine, Swicki, Powerset, Wink, Twitter, FOAF, OpenSocial, Beacon, Joost, Netflix, Slingbox, iPhone, Andriod etc
个人总结是：
web1.0 是资源互联（text, video, music, pictures etc）
web2.0 是人互联（social graph, life streaming）
web3.0 是数据互联 （系统可以更智能的理解数据之间的关联和用户表达的含义，从而更准确的给出用户想要的东西）
