A way, course, or direction of thought or action; is the one of the definitions Webster gives for the word channel. When deciding to select a channel(s) for sending out information you must consider the following.
1) You must first understand what each of the channels do and how they are used buy your audience.
2) Second you must understand what your company’s goals and vision are for sending out certain information (What are you trying to accomplish by sending this information out?
3) Third how is your audience going to receive this information (computer, tablet, phone) must make sure information is presented the way you want it on each device.
4) Create content that is meaningful with that channel. If the channel requires short and sweet info make sure it is, if it requires you to have it lengthy then do so but make the content appropriate for the channel
Deciding what channel to use is difficult but as long as you do some research first it will make it a lot easier to do.