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It's official!

NYT does what many have expected for a long time — prepares to ask readers to pay for access. Looks like it will be a "metered system" where people will be able to view a few articles for free before being asked to subscribe.

Smart move by Yelp. Remains to be seen what kind of impact this will have on the mobile local market, but Yelp has some very important advantages — a substantial established user base, and relationships with local advertisers — that cannot be denied, despite FourSquare and Gowalla's penetration among the social media elite.

Interesting, if not that surprising.

“When the effective shelf-life of a document (or any information product) shrinks, fewer resources will be invested in its creation. This is because the period during which the product is likely to be read or referred to is too short to repay a large allocation of scarce time and skill in its production. As a result, the “market” for depth is narrowing. “