Global website with links to local operating companies, partner networks, financial data, investor and media relations, corporate responsibility, global enterprise, sponsorship, foundation, and careers.

AT&T is a leader in telecommunication services, including cell phones, wireless, U-verse, digital TV, high speed internet, DSL, home phone, and bundled services.

人民网-无线频道。

ChinaUnix FreeBSD社区为网友提供最新的FreeBSD资讯、技术文档，同时为广大FreeBSD爱好者提供一个方便的交流社区。

Red Hat is the world's leading open source technology solutions provider with offerings including Red Hat Enterprise Linux, open source applications, security and systems management, virtualization, Services Oriented Architecture (SOA) solutions.

Linux Today - Linux News On Internet Time.

Comprehensive information and resources about the Linux Operating System.

Software tools and techniques for global software development. Dr. Dobb's features articles, source code, blogs,forums,video tutorials, and audio podcasts, as well as articles from Dr.

Free source code and tutorials for Software developers and Architects.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory.