Ian Shapira writes about one of his stories in the Washington Post being summarized in Gawker and how that affects the business of the Post.
By creating value, but offering it for free the Post is allowing sites like Gawker to capture that value and make money off it.
More readers are better than fewer, of course. But those referring links — while essential to our current business model — aren’t doing much, ultimately, to stop our potential slide into layoffs and further contraction. Worse, some media experts believe that Gawker and its ilk, with their relatively low overhead, might be depressing online ad revenue across the board. That makes it harder for news-gathering operations to recoup their expenses.
— The Death of Journalism (Gawker Edition) Washington Post
It also shows that even if news outlets restrict their content, they still have to control where it gets copied.