a.k.a. cloud Web, executable Web, location-aware Web, semantic Web, social Web, Web 3, the second Internet, social Internet
A buzzword used to describe the next-generation of Web and Internet applications after Web 2.0. As is the case with Web 2.0, this is one of those terms that is both widely and loosely used. It is not an official phrase, title, protocol, or standard, nor is it a technology, product or company, but rather it is another new way of architecting software and services on the Internet.
Originally thought of as the semantic Web, Web 3.0 is more characteristic of ubiquitous computing (also known as "everyware") in that it marks the era of the arrival of cloud computing, specifically the thin client running against cloud-based data and services. For example, the Apple iPhone and iPod represent the complete integration of computing into every part of our lives in a way that is seamless, ubiquitous, and ideally very simple.
It may be useful to think of Web 3.0 within the context of Tim Berners-Lee's notion of the read-write Web: First we had Web 1.0 - the read-only Web; then came Web 2.0 - the read-write Web (including all of the services that make it easy for users to contribute content and interact with others); then there's Web 3.0 - the read-write-execute Web. This indicates a Web where users can craft and execute their own tools and their own software, rather than just uploading stuff to other people's sites and software.
In addition to users executing their own tools, Web 3.0 is the evolution of Web usage and interaction which is transforming the Web into a database and a move towards making content accessible by multiple non-browser applications. For example, Web 3.0 is every device connected to the Internet and seamlessly to itself, such as video streamed from a computer to a TV, picture frames that pull photos from an online photo-sharing account, and products recommended by friends via a website that appear on a cell phone while in a shop.
In addition to the above overarching traits, Web 3.0 is also described as encompassing these characteristics:
* Providing more control of our data - for example: enhanced personalization systems will wrap our personal data with various types of protection and will be shared widely, narrowly, or not at all depending on our choice, greater recommendation and ranking systems will help us figure out which data sources to take seriously and which to shun.
* Providing more meaning in our search for, and organization of, data - for example: semantic search, and "linkability web apps" that allow you to use all of your disparate desktop, server, and mobile devices and programs (including telephones, fax, instant messaging, pagers) in a single browser window on your desktop or handheld device.
* Providing an always-on, everywhere presence - for example: networks and services that follow us every step of our lives (whether or not we want it to), and more software embedded in browsers so that it doesn't require any downloading or installation on your desktop or server.
* Providing more visual and voice-based services - for example: avatar interactions in virtual worlds as a part of social networking, social shopping, and virtual reality gaming.
As seen in The Wall Street Journal circa June, 2009 "From using easy gestures to grab any piece of information from the Web to having powerful computers in the palm of your hand to being able to quickly dip into complex social networks to getting real-time information from across the globe as it happens, Web 3.0 is an era when computing could become as integrated and invisible as electricity and just as important."