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This was a free Web 1.0 tool used to host personal web pages.
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DoublClick was a Web 1.0 tool used to put adds on websites.
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This was a Web 1.0 tool that provided information about your mp3's.
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Look up your favorite subject in history on this Web 2.0 tool!
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This is a Web 2.0 tool to help friends stay in touch.
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Make and publish your own video with this Web 2.0 tool.
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Twine is sometimes called the start of the Web 3.0 tools.
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This Web 3.0 tool is an engine for computing answers and providing knowledge.
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This was Google's Web 3.0 tool that was intended to compete with Wolfram Alpha.
