Holding company with subsidiaries which design, manufacture and market broad range of computer control devices, including mice, trackballs, touchpads...

The IBM corporate home page, entry point to information about IBM products and services.

Official Hewlett-Packard site - Buy or learn about HP printers, laptops, computers, digital cameras, servers, storage, networking, software, enterprise solutions and more.

著名IT技术门户，提供最热门的业界资讯，IT培训资讯，IT专家技术，交流社区。

ITworld delivers strategic analysis, best practices, news and product information to better inform IT professionals on today's leading tech topics.

IDG is recognized worldwide as a leader in exhibition management, producing more than 750 globally branded conferences and events in 55 countries.

IDG TechNetwork is the premier online advertising network designed for technology marketers and agencies who create high-impact branding, product launch and lead generation programs.

IDG, the world´s leading technology media, research and event company, reaches more than 140 million technology buyers in 85 countries representing 95% of worldwide IT spending.

International Data Group, the world's largest technology media company, has globally branded product lines that reach more than 200 million technology buyers in 92 countries.

Serving chief information officers and other IT leaders, CIO.com, CIO magazine, CIO Executive Programs, CIO Custom Solutions Group and the CIO Executive Council are produced by CXO Media, an award-winning business unit of International Data Group.