The buzz is growing about Web 3.0, but as usual you have to filter out all the hype, self-serving PR, old-fashioned nonsense, new fangled marketing verbiage and other noise. You will then find a few facts that you can grab onto and try to figure out what's going on. The first thing to remember is that, like "Web 2.0," the term Web 3.0 is not an official term of any sort, does not represent any particular protocol or standard, belongs to no one - and is used, misused and made nearly meaningless by everyone. It is, quite simply, just an arbitrary "version number" that, at most, describes how the Internet is built and how it delivers services, at least as of the freeze-framed moment in time that represents the end of 2.0 and the start of 3.0.
Sometimes it is called the "semantic Web," but perhaps the less-used term "everyware" is more descriptive. The new scenario is one of ubiquitous computing, the advent of cloud computing where a "thin client" (no- or low-powered PC, or even just a monitor and mouse) runs cloud-based applications



