• Associated Press, Wednesday, August 20, 2008 9 AM

As news organizations chase the emerging market for mobile advertising, The Wall Street Journal has launched a wireless content application for BlackBerry smart phones. The free WSJ.com Mobile Reader provides headlines, summaries and full articles from the WSJ, MarketWatch, Barron's and All Things D websites.

Users can organize content by category and keywords and can track specific companies and stocks. They also have the option to pull material from rival sites and blogs. There are no plans to charge for the ad-supported application, but the company will eventually make some content available only to paying subscribers.

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