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The net was first used as a tool to pass information between American military and scientific bodies from the 1960's. It has dramatically evolved since then, in developed nations the net through the World Wide Web is now an significant part daily life. Information can be passed immediately from 1 pc to another anywhere in the world developing a global village. Web 2.0 is a phrase that to a certain scope redefines the applications of the web or more accurately the World Wide Web. It had been initially coined by Tim O' Reilly in a seminar in 2004 it doesn't as the name suggests refer to technological advances in the structure of the World Wide Web but rather software development that allows users to interact with Internet page content and each other. As soon as the World Wide Web was launched from the early 1990's its applications were confined to viewing Web page content. With the introduction of Web 2.0 technologies people may communicate more efficiently via instant messaging or video calls, share media content such as video's, music, photos, join social networking websites or express their own perspectives and opinions about any topic through blogging. Web 2.0 technologies enable marketing businesses to market to exact target markets via social networking websites. All social network websites require user's to enter personal information to create a profile that breaks down the websites users into key demographic sorts of gender, age and category. This allows the web site administrators to effectively advertise products designed for a specific target market. One factor of social networks would be for individuals to represent themselves to the world in a self-designed profile or homepage. This permits users to develop a persona that they feel uneasy or unw...