As this story points out, the New York Times has decided to implement a subscription plan for the more devoted visitors of their website. There are obviously pros and cons associated with this plan, but, generally, I think it is a step in the right direction.
Consumers of news will have to make a direct investment into the content, it’s production and, most importantly, the role it plays our society. Practically speaking, the user interactions (e.g. posting comments) will now benefit from one’s motivation to invest. Leveraging this motivation, from an interaction design perspective, would be really interesting.