Commercial speech, however, is less protected by the First Amendment than political speech, and is therefore subject to greater regulation. The Free Press Clause protects publication of information and opinions, and applies to a wide variety of media.
In computer networking, multicast (one-to-many or many-to-many distribution) is group communication where information is addressed to a group of destination computers simultaneously.
Related Terms. Spreading an advertising message or signal over a wide area (or to all connected devices) without specific targeting. Unlike narrowcasting, broadcasting employs a shotgun approach in dissemination of information. See also multicasting and unicasting.