开发者在线
开发者在线面向软件开发领域人群。核心内容覆盖软件开发技术的各个层面：C/S开发、数据库开发、SOA中间件、WEB开发、移动嵌入式、项目管理、网页设计。
Linux
For the community, by the community, Linux.com is the central source for Linux information, software, documentation, how-tos and answers across the server, desktop/netbook, mobile, and embedded areas.
Dr. Dobb's
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.
Linux Online
Comprehensive information and resources about the Linux Operating System.
redhat.com
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.