I prefer Libre book then Books available on EBook
Autotools
Free Culture
http://www.oreilly.com/catalog/opensources/book/toc.html
gnutenberg
Thinking in Patterns
http://www.oasis-open.org/docbook/documentation/reference/html/docbook.html
http://www.xml.com/ldd/chapter/book/index.html
3D Computer Graphics: Principles and Practice in C (2nd Edition) by James D. Foley, Andries van Dam, Steven K. Feiner, John F. Hughes
@TaG: Shopping Print Media Livres ToRead WisH GifT
<iframe width="560" height="315" src="http://www.youtube-nocookie.com/embed/Q_uaI28LGJk" frameborder="0" allowfullscreen></iframe>