Alan Murray, Executive Editor of The Wall Street Journal Online, April 4, 2009
The WSJ is credited (and it seems rightly so) with creating a successful pay wall around select content. Its example may not be applicable to other services, though. It would be interesting to know how many WSJ subscribers personally pay for the content and how many subscribe through work. I suspect a large slice are reading on the bossman's dime. In general, if readers don't perceive a service as unique and professionally/financially valuable, then it may not rate the expense.
My take-away from this interview: news companies should stop insisting consumers pay for services that are currently free and create something perceived to be indispensable.