Paper Related
Linux Related
鳥哥的私房菜(中文)
TLDP
The Linux Documentation Project
LWN
aims to be the premier news and information source for the free software community
Linux Kernel
A Blog about Kernel Memory Management
File System Related
Ext2 vs Ext3 vs Ext4 vs XFS vs JFS vs ReiserFS vs Btrfs
Comparison with file system in Linux
硬碟保固查尋
Proxy Introduction
A testing tool for caching proxies - Web Polygraph