嵌入式在线
嵌入式在线是中国最大、最专业的嵌入式行业门户网站。我们致力于为工程师提供业内厂商、产品、技术、方案、应用、资料、商务、市场、求职、招聘、培训、新闻等全方位资讯。我们主要提供的信息包括： 嵌入式系统与开发软件下载与应用、嵌入式处理器（MCU、DSP、FPGA等）应用方案、嵌入式模块与板卡开发、开发工具套件信息提供以及嵌入式模块与板卡的应用等。
中国IT实验室-嵌入式开发频道
中国IT实验室-嵌入式开发频道提供最全面的嵌入式开发培训信息以及行业动态及与技术信息，下设栏目包括：业界动态，嵌入式操作系统，网络与通讯，手机开发，解决方案，资料下载，ARM技术，单片机，DSP技术，FPGA技术，PCB设计等海量文献，以及嵌入式开发文档、嵌入式开发教程等相关资料下载，致力打造中国最大的嵌入式开发网站。
ChinaUnix
ChinaUnix是中国最大的Linux/Unix技术社区网站，我们还交流程序开发，数据库，存储备份，服务器技术，网络安全等技术，并提供IT人才招聘，软件下载，BLOG，IT培训等服务。
CodeIgniter
CodeIgniter: an open source Web Application Framework that helps you write PHP programs.
PHPDevShell
a Highly modular plugin based Code Management System and Framework. PHPDevShell can offer you immediate general used functionality with a user interface for your next proje.
Zend Framework
Extending the art & spirit of PHP, Zend Framework is based on simplicity, object-oriented best practices, corporate friendly licensing, and a rigorously tested agile codebase.
Zend
A bottom-up rewrite of the PHP scripting engine. It features a modular architecture, vastly improved performance, and greater scalability.
FreeBSD
FreeBSD is an advanced operating system for modern server, desktop, and embedded computer platforms. FreeBSD's code base has undergone over thirty years of continuous development, improvement, and optimization.
Debian
Debian GNU/Linux is a free distribution of the GNU/Linux operating system. It is maintained and updated through the work of many userswho volunteer their time and effort.