A system for handling video tags. The tags are displayed synchronized to a video. A controller manages and modifies tag data that can be created by one or more users. The controller identifies a tag dataset for use with a video and provides information for synchronization and display of the tags. Various user interface features are disclosed to allow one or more users to author, publish, view and manipulate tags. Features of a social-network website implementation are disclosed whereby a user community can post, filter, rate and display tags. User profiles are used to define tag characteristics associated with a particular user.