Tim O'ReillyのWeb 2.0のCompact Definition

Web 2.0 is the network as platform, spanning all connected devices; Web 2.0 applications are those that make the most of the intrinsic advantages of that platform: delivering software as a continually-updated service that gets better the more people use it, consuming and remixing data from multiple sources, including individual users, while providing their own data and services in a form that allows remixing by others, creating network effects through an "architecture of participation," and going beyond the page metaphor of Web 1.0 to deliver rich user experiences.

ビジネスの視点で見ると、「で、何ができるようになるの」というのが大事

I spend most of my time dealing with business execs who view technology as an enabler - their natural (and not unreasonable question) is: so what does this enable?

distributed, collaborative and cumulative creationにどう寄与するかが重要

All businesses had better figure out what it means to engage in “distributed, collaborative and cumulative creation” and adjust their business models and capabilities accordingly.

巷のWeb 2.0の議論を見る時に気をつけるべき点

I have found it useful to step back from each contribution and ask three questions to test the value of the contribution:

・Does it really make clear what is different about Web 2.0?
・Does it tell us why we should care?
・Does it make assumptions about who should care – i.e. are we explicitly or implicitly addressing technologists, business people or some other constituency?