How long will Twitter allow users like AP to sell their own ads?

From PaidContent:

We’ve written a lot about Twitter’s attempts to put a lid on its real-time information network and control as much of the content that flows through it as possible — especially the advertising, which is the key to the company’s ability to monetize that network. Unfortunately for Twitter, there are still plenty of holes in that lid, including the one that The Associated Press newswire is currently using to distribute its own “sponsored tweets” as part of an advertising campaign with Samsung during the Consumer Electronics Show. It’s just like Twitter’s promoted tweets, except the network doesn’t see a dime. How much longer can it allow this kind of practice to continue?

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