Willis Stein & Partners announced today it has completed its acquisition of Ziff Davis Publishing from Ziff-Davis Inc. for $780 million. James D. Dunning Jr. was officially named chairman-president-CEO of the new company, which will be called Ziff Davis Media Inc. Dunning, who is also chairman-president-CEO of the Ziff Davis Media division of Ziff Davis Publishing, unveiled a new corporate structure for the company, which will be divided into business and consumer units. Al Perlman will be president of the business magazine group, which includes Smart Reseller and [email protected] Week. Jim Spanfeller will be president of the consumer magazine group, which includes PC Magazine and Yahoo! Internet Life. Tom McGrade will be senior exec VP-COO of Ziff Davis Media and Ziff Davis Publishing. Dunning also announced the company will launch Ziff Davis Internet Inc. to develop new Web sites and e-commerce initiatives, and Ziff Davis Development Inc., to create new magazines and events.