Resources I've compiled while dealing with the Linux Kernel

First off - the best location for information about how the kernel does things is the /Documentation/ folder right in the source tree. Best source yet.

• How NOT To write a device driver
• Interfaces between Kernel and User space
• How linux keeps track of time
• The High Resolution Timer API
• Linux Device Drivers (free ebook) Vol 3
• Linux Kernel Module Programming Guide (LKMPG)
• Loadable Linux Kernel Module Guide
• Kernel Objects (struct kobject)
  • The Zen of Kernel Objects
  • Kobjects and Sysfs
  • New kobject/kset/ktype documentation and example code