The coiner of the phrase Web 2.0. Web 2.0 is essentially World Wide Web websites that emphasize user-generated content, usability, and the ability for the website to work well with other products, systems, and devices for end users.
Web 1, 2, and 3 ?
Web 1.0 refers to the first stage in the World Wide Web, which was entirely made up of web pages connected by hyperlinks. There is only limited interaction between sites and web users.
Web 2.0 has been the term used to describe the social web, where social networking sites hold a prominent place in users’ online activities.
Web 3.0 as connective intelligence; connecting data, concepts, applications and ultimately people.
The main differences between these are the tasks that can be committed.
Nomadicity is the tendency of a person, or group of people, to move with relative frequency. Leonard Kleinrock and others have written of the need to support today’s increasingly mobile workers with nomadic computing, the use of portable computing devices and, ideally, constant access to the Internet and data on other computers.
Mash-ups are often defined by the type of content that they aggregate. A content mash-up, for example, brings together various types of content for presentation through an interface. For example, Housingmaps.com is a mashup that applies real estate information, such as apartments for rent or homes for sale, from Craigslist to Google Maps.
Wiki, is a World Wide Web site that can be modified or contributed to by users. A common example of this is known as Wikipedia.