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.
an auto-generated image displaying a user's total reputation and badge counts on one Stack Exchange site or across all of them.
Use it for questions about user accounts that have been deleted or the process of that deletion.
For questions about the profile picture option, which allows users to upload a custom photo as their avatar. Not for questions about Gravatar.
for questions about the Stack Overflow blog, the official mouthpiece of the Stack Exchange empire.
light-hearted but hopefully of some additional use beyond mere entertainment.
Every user's account profile has a section showing the recent reviews, revisions, comments, badges, posts (questions and answers), and accepts.
Can the site(s) be used by specified users to achieve specified goals?
For questions about adapting Stack Exchange to the needs of users from a specific cultural, linguistic or geographical background.
A request to reopen a closed question, or receive further explanation of why it was closed.
For questions about the public or private beta phase of a site's progress through the Area 51 site creation process.
The process by which users can vote a question re-opened if it is closed due to some users seeing it as off-topic or otherwise disallowed by the /faq.
Activities such as searching, voting, editing your own posts, or suggesting edits are rate-limited on Stack Exchange sites. These restrictions generally exist to prevent abuse.
For questions about the various RSS feeds provided by Stack Exchange sites.
the little blurbs that pop up when you hover an element in a web page. They are typically taken from an element's "title" attribute.
Times a question has been seen by eyeballs, or a profile has been looked over
Friendly comparison chart showing the reputation gains and losses between users on a site
For questions about the CAPTCHA used on Stack Exchange sites to verify that you're a person and not a spam-bot.
A dropdown containing recent reputation, badges, and privileges earned across all Stack Exchange sites
Refers to the second, non-commercial, generation of Stack Exchange sites created through Area 51.
Questions about the legal aspects of Stack Exchange sites, such as the terms of service, using content and/or code-snippets, attribution, copyrights, patents, using trademarks, etc.
the percentage of questions for which the user has accepted an answer.
For questions and requests to merge multiple (per site) Stack Exchange accounts of the same user.
For questions about specific suggested edits that have already been rejected by the community.
related to those Stack Exchange sites which are currently in beta phase.
For questions involving the "Ignored Tags" specified in a user's Preferences. Questions with these tags are dimmed or removed entirely from question lists.
For questions concerning various error messages that users receive throughout the network.
The Stack Exchange button, also known as the Stack Exchange™ MultiCollider SuperDropdown™, refers to the button that appears at the top right of all Stack Exchange 2.0 sites.
For questions concerning Google, a popular search engine and the main referrer to Stack Exchange sites. For Google as an OpenID provider, use the [google-openid] tag. For questions about Chrome, use t…
For the suggestion of improvements to the phrasing of text shown to users by the Stack Exchange engine.
For questions which focus on the live refresh features such as vote updates and new edit, answer, and comment notifications.
Questions may be protected by users with 15,000 reputation or by diamond moderators. Protected questions can only be answered by users with at least 10 reputation (110 if they have the association bon…