A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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community-vetted advertisements that will show up on the main site, in the right sidebar. The purpose of this question is the vetting process. Images of the advertisements …
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if your question is about community bulletin. If you want a question to appear in the community bulletin, featured tag should be used instead.
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questions related to data about the website, most likely from data.SE
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question about the design of the site
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designed to solicit opinions or best-practices on a particular topic, with the goal of reaching community consensus.
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Any two or more questions which cover the same topics and/details and can be answered by one of the existing questions.
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used for questions about editing on Ask Ubuntu.
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only used for Moderator election questions & answers.
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used by moderators (for EOL notices) or by anyone for discussions about handling posts about EOL versions of Ubuntu.
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