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Twitter is an example of what type of site?
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_______ typically broadcast live events and use streaming technology in which audio and video files are continuously downloaded to your computer while you are listening to and/or viewing the content.
_______ do not use streaming technology and are used to download media files to your computer.
Which of the following is a website specially designed to allow visitors to use their browser to add, edit, or delete the site's content?
These special programs continually look for new information and update the databases used by search services.
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