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A mashup is defined as a combination of existing works, but do you ever find that todays fancy news, media and social networking sites are just a link to other peoples work. Now I am not saying that this is a terrible thing, my homepage is set to dzone's most popular links and I enjoy going to one site and getting a whole bunch of interesting data; However what about webapplication that are just mashups? Have you ever wondered what would happen to those sites if they were no longer allowed to link to that "kewl" new piece of functionality due to legal reasons ? I do.