| http://www.w3.org/ns/prov#value | - The expansion contrasts with a contraction at one of its main rivals, Microsoft Corp., which announced plans Thursday to lay off 18,000 workers.Google???s revenue growth is being held back by a persisting decline in the average prices for the ads that appear alongside search results and other Web content, a measure known as ???cost per click.??? The average price fell by 6 percent from the same ti
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