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.
Multicast Dissemination Protocol (MDP) The Multicast Dissemination Protocol (MDP) is a communications protocol for one-to-many transmissions in wired or wireless networks. Multicast protocols are used for such applications as group conferencing or online gaming.