I've released a new version of the document: Open Source, Free Software & GNU/Linux after a revision by Slacky members.
There are few major changes.
The first is on the extension of the document to contain the Creative Commons Licence and the Thanks to section.
The second is the corrections of the hacker and UNIX note.
Follows few grammar corrections.
You can download the document HERE or in the menu on the right.
In the next few days the new version of the document can also be downloaded at Slacky home page section "Il nostro mondo"