Boston--International Data Group announced the appointment of David Korse to president of IDG World Expo, which produces technology trade shows. Korse will officially take the helm June 16. In his new post, Korse will oversee IDG World Expo events such as Bio-ITWorld Conference & Expo and Linuxworld Conference & Expo. He will also be expected to launch new trade shows. Most recently, Korse was president-CEO of Imark Communications, an integrated media company specializing in producing b-to-b trade events.