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.
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.
Ubuntu
Super-fast and great-looking, Ubuntu is a secure, intuitive operating system that powers desktops, servers, netbooks and laptops. Ubuntu is, and always will be, absolutely free.
openSUSE
openSUSEopenSUSE 是一个自由的、基于Linux的操作系统，适用于您的个人电脑、笔记本电脑或服务器。您可以畅游网络、管理您的电子邮件与照片、办公、欣赏视频与音乐。
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.
NTT DOCOMO
The global website of the Japanese mobile operator NTT DOCOMO, including press releases and updated corporate information.
欧朋官网
欧朋：欧朋成立于 1995 年，总部位于挪威首都奥斯陆，并在全球不同国家与地区的 25 个地点设有办公室，每月为全球超过 10 亿网络用户提供服务，其中 3.5 亿用户通过我们的 App 与服务畅享网络。古语有云：“有朋自远方来，不亦乐乎”。欧洲的“欧”，朋友的“朋”，2011 年 8 月，我们在中国发布了中文品牌——欧朋，从手机端浏览器开始，在 4 年内，发展了全平台的浏览器、手机流量管理节省应用——欧朋流量宝、欧朋企业解决方案等多种产品和服务，触及 1 亿以上的中国活跃用户，而仅在去年一年内，我们就帮助了中国用户优化节省流量 3000 万 GB，约合 18 亿人民币。