Python Playground
Geeky Projects for the Curious Programmer
Free Executive Summary
Leona Coffee
Technical Writing for Business People
Carrie Marshall
Red Hat Enterprise Linux 6 Administration
Sander van Vugt
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain