Deploy Your Own “Cloud” with Debian “Wheezy”

The Debian Project produces an entirely Free operating system that
empowers its users to be in control of the software running their
computers. These days, more and more computing is being moved away from
user computers to the so-called "cloud" – a vague term often used to
refer to Software as a Service (SaaS) [1] offerings. We are concerned
that, without the needed care, this trend might put in jeopardy most of
the freedoms that users enjoy when running (on their computers) 
software that is Free according to the Debian Free Software 
Guidelines [2].

  1: http://en.wikipedia.org/wiki/Software_as_a_service