Welcome!

Sources:

Usability in free software by-sa University of - J. Bochard
A mini guide to critical thinking, University of hong kong - Dr Joe Lan
Empirycal research on humility in news comments, A literature review for the Scholio Project, University of Westminster - Hans Asenbaum

I used GITBOOK to compile the slide, so you can have also the pdf and ebook! http://git.lattuga.net