there are certain patterns that have been true with communication media over a long period of time. You can see that all electronic forms of communication follo

there are certain patterns that have been true with communication media over a long period of time. You can see that all electronic forms of communication follow these patterns. There is immediate/delayed, one way communication, two way communication, communication with a single person, communication with a group, written, spoken, and visual. You can form combinatorics with these options and find historical examples for all of them. 1) written one way communication to single(e.g. mail, email) 2) written one way communication to audience (e.g. newspapers, blogs, online news) 3) written two way communication - immediate (e.g. notes passed in class, telegram, instant message, slack) 4) written two way communication delayed (e.g. mail, forums, reddit) 5) spoken one way communication to one - delayed (e.g. message passed to a friend, answering machine voice message, voice mail) 6) spoken one way communication to many (e.g. speech, radio, podcast ) 7) spoken two way communication to many (e.g. meeting, talk radio, phone party lines) etc etc