Canada’s Thomson Corporation will buy Britain’s Reuters in a $15 billion deal, now that shareholders of both companies have signed off on the deal, as have the courts. So how does a news wire service like Reuters command such a hefty pricetag? Because it generates only about 10 percent of its revenues from the not-very-profitable news gathering side (and using doctored photographs must offset some costs); most of its cash stream comes from providing finance and market data to high-paying clients. [Forbes]