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What is a "tag"? -- What is a "tag cloud"?

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What is a

Image by Daniel Nations

Definition:

A tag is a keyword used to describe an article or website. Tags are often used in social bookmarking, social news and blog entries to help users search for relevant content.

For example, a blog entry on the Green Bay Packers might be given the tags of "blog" , "Green Bay" , "Packers" , and "football".

Tag can also be used as a verb, as in tagging a blog entry or searching for articles tagged with "sports".

A tag cloud is a box containing a list of tags with the most prominent or popular tags receiving a darker and bigger font than less popular tags.

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