As far as I can tell, the 73% number comes from "Only 27% of those between the ages of 18-30 say Twitter is an important rapid-feedback tool for business." So

As far as I can tell, the 73% number comes from "Only 27% of those between the ages of 18-30 say Twitter is an important rapid-feedback tool for business." So executives who don't think Twitter is the second coming should fire themselves. Thanks TechCrunch. Sigh.