Dr Ken Henry, a former Treasury secretary, says he can't recall a time when the debate about public policies has been poorer. I can't either, and I guess the dreaded MSM - mainstream media - is part of the problem.

But if the challenge of digital disruption has tempted the mainstream to devote more time to political colour and movement and less to debating government policies, there's one respect in which the internet has made things better.

Illustration: Glen Le Lievre

The advent of blogging has given anyone who wants to the ability to air their thoughts to the world. A lot of blogs come under the heading of you're-entitled-to-your-opinion, but sometimes they're written by people who know a lot more about the topic than most of us and have a valuable contribution to make.

That's particularly true when academics take to blogging. One of the earliest bloggers about economic policy was Professor John Quiggin, of Queensland University. Other high quality Australian blogsites are Club Troppo, Core Economics and, for the more libertarian, Catallaxy Files. (There was a blog called Ross Gittins, Corrected but they seem to have given up.)