People can't hear you...

I have been very impressed with Kurt Voelker's presentation here:
http://www.slideshare.net/forumone/online-trends-in-communications-impact/
His presentation shows the how things are moving on and the impact of modern digital communications. I gather this was shown to an audience of PR and marketing types recently.
One of his slides that resonated with me particularly, was an image of 3 boys whispering, with the title:
"People can't hear you. They are too busy listening to their friends"
Poignant I feel!