The Sun and Pay-walls
The article is quite right to question News International's strategy of putting all content behind a paywall. Clearly it can work for highly valued content such as that in the WSJ, but who is going to pay for The Sun and The Screws of the World online?
As it is, he real-world edition of The Sun is practically given away - the cover price can barely pay for the cost of production and printing, let alone the content - even if that is produced really cheaply. We have to conclude that the majority of the paper's costs are covered by advertising.
However, it gets worse: there is nothing in The Sun that is particularly exclusive - if it's recycled new stories from AP is what you want, they're available in many other places (for free), and there are myriad other sources for soft-core pr0n.
What incentive is there to go online (other than, perhaps, to contribute entertainingly ignorant, badly written UGC) and what incentive is there for advertisers to advertise behind a pay-wall?