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.
Questions regarding the tags used on Space.SE, and what kind of questions they should be used on.
Question regarding the types of questions which we should allow here.
Questions related to (online) resources relevant for research in the SE domain, both historical and contemporary resources, online and offline.
Questions related to the election of moderators
Indicates that the reported behavior is intentional and not subject to change