Olivier Fourdan, creator of Xfce says: "Xfce is a lightweight desktop environment for various *NIX systems. Designed for productivity, it loads and executes applications fast, while conserving system resources." - the slogan of Xfce seems to be "...and everything goes faster!"

Xfce is the default desktop environment of Xubuntu, a UbuntuLinux flavor. Is now the default desktop of DebianLinux after version 6.

Some links:
* http://www.xfce.org/
* http://en.wikipedia.org/wiki/Xfce