The following corporate finance-related stories were reported on Wednesday: * Zynga Inc may file for a multibillion-dollar IPO as early as this week, tech blog AllThingsDigital reported, as the maker of the Farmville and Mafia Wars games for Facebook heads toward a long-awaited market debut. * Diageo Plc , the maker of Johnnie Walker scotch and Smirnoff vodka, is in talks to purchase tequila brand Jose Cuervo for more than $2 billion, Bloomberg reported on Tuesday.
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