Python Playground
Geeky Projects for the Curious Programmer
Beginning Linux Programming
Neil Matthew & Richard Stones
Applied Cryptography
Bruce Schneier
CCNA 200-301 Official Cert Guide, Volume 2
Wendell Odom
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain