Woops! found it at the end of the article. Sorry for the unnecessary reply.
The fairest and most efficient way to "tax the rich" would be with an excise tax on advertising. For fairness, the wealthiest corporations in world would pay for the privilege of competing in our free market economy. For efficiency, the media would be well positioned to accomplish their well known goal of collecting huge sums of tax dollars from the wealthiest corporations in the world.