I encourage you to read this post by Shane Hipps in which he argues that electronic media isn’t message-neutral. He contrasts how the text medium favors communication through systematic, linear reason, whereas the image medium favors communication through stories and experience.
Personally, I favor the use of multi-art, multimedia presentation. This approach uses emotion and reason, experience and information, story and logic to increase the liklihood of connecting in some way with each person and their different ways of learning. And yes, I agree that the medium affects the message. A multimedia approach means the communicator needs to think even more than ever about what they’re saying and the most effective way to say it. I think that’s a good thing.