Great Videos:
A Different Way to Think about Creative Genius - Elizabeth GilbertIntelligence is all about prediction - Jeff Hawkins
Take the world from another point of view - Richard P. Feynman
The Pleasure Of Finding Things Out - Richard P. Feynman
The Last Lecture: Achieving Your Childhood Dreams - Randy Pausch
Stay Hungry, Stay Foolish - Steve Jobs
On Getting Creative Ideas - Murray Gell-Mann
Good Online books:
Wireless in the Developing WorldVisualizing Data
Fundamentals of Wireless Communication
Linux
Linux Device Drivers, 3rd EditionUnderstanding the Linux Kernel, 3rd Edition
Linux System Programming
Understanding Linux Network Internals
Building Embedded Linux Systems
Linux Loadable Kernel Module HOWTO
The Linux Kernel Module Programming Guide
Misc
bash CookbookRegular Expression Pocket Reference, 2nd Edition
Version Control with Subversion
Ruby
Programming Ruby - (*Recommended)Ruby Essentials
The Ruby Programming Language
Learning Ruby