The IDG TechNetwork, a global online ad network with International Data Group (IDG) as its parent company, has expanded its operations to China this month. IDG has had a presence for 34 years in China. With a network of more than 570 publisher sites, the IDG TechNetwork reaches more than 130 million tech enthusiasts, according to the company. Based in Beijing, IDG TechNetwork China is a fully-owned business unit of IDG China under the leadership of CEO William Xu.