the practice of generating electronic tags or keywords by users rather than specialists as a way to classify and describe online content: Social tagging can enhance students' access to online collections of art.
a visual representation of user-generated electronic tags or keywords that classify and describe online content, typically an alphabetical list or a grouping of words in different font sizes, as to show relative frequency or provide links to further information: a tag cloud of the words used in the president's speech. See also tag1 (def 9b).
