What is Debian?
The Debian name is used for two different subjects:
The Debian Project is an association of individuals who have made common cause to create a free operating system. This operating system that we have created is called Debian GNU/Linux, or simply Debian for short. (read more http://www.debian.org/intro/about)
the wiki FrontPage is a good starting point.
Do not link to this page : This page is meant to redirect people that "got lost" in the search engine.