Microsoft has reportedly signed a deal with News Corporation that will see certain news sites removed from Google's index and ranked exclusively with Bing.
News Corporation publications include The Wall Street Journal, Dow Jones, The Sun, The Times and The News of the World.
A News Corporation UK spokeswoman said that the reports stem from a recent meeting between the two companies, and that only the New York office would be able to confirm the reports. The US office could not immediately be reached.
A report in The Financial Times claims that the idea for the pact came from News Corporation rather than Microsoft, and that talks are still at an early stage.
Rupert Murdoch's News Corporation has been looking for ways to monetise content since print advertising revenues started to fall. The Wall Street Journal has charged for exclusive content since early 2008.
Microsoft has said that it will aim to differentiate its search content from Google's by pulling in content not found elsewhere.
The latest data from market research firm comScore shows that Bing has increased its market share in recent months.
Google had a 65.4 per cent share of the market last month, a four per cent month-on-month increase, while Microsoft had a 9.9 per cent share, an eight per cent increase on September.
A spokesman for the Microsoft UK press team said: "We usually don't comment on speculation, but I'll let you know."
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