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The term "**Web 2.0**" describes the changing trends in the use of [|World Wide Web] technology and [|web design] that aim to enhance[|creativity], communications, secure information sharing, collaboration and functionality of the web. Web 2.0 concepts have led to the development and evolution of web culture communities and [|hosted services], such as [|social-networking sites], [|video sharing sites], [|wikis] and [|blogs]. media type="custom" key="3015558" Web 2.0 websites allow users to do more than just retrieve information. Web 2.0 websites typically include some of the following features/techniques. Andrew McAfee used the acronym SLATES to refer to them: 1. “Search: the ease of finding information through keyword search which makes the platform valuable. 2. Links: guides to important pieces of information. The best pages are the most frequently linked to. 3. Authoring: the ability to create constantly updating content over a platform that is shifted from being the creation of a few to being the constantly updated, interlinked work. In wikis, the content is iterative in the sense that the people undo and redo each other's work. In blogs, content is cumulative in that posts and comments of individuals are accumulated over time. 4. Tags: categorization of content by creating tags that are simple, one-word descriptions to facilitate searching and avoid rigid, pre-made categories. 5. Extensions: automation of some of the work and pattern matching by using algorithms e.g. amazon.com recommendations. 6. Signals: the use of RSS (Really Simple Syndication) technology to notify users with any changes of the content by sending e-mails to them. *Information gathered from [|Wikipedia]