How To Use Glx-Dock/Cairo-Dock On Ubuntu 12.04
Glx-Dock/Cairo-Dock is an interactive dock (like the one you know
from a Mac) that provides easy access to some of the files, folders,
and applications on your computer, and more. You can use it with
OpenGL (to use your graphics card) or without, and it is compatible with
Compiz, but it can also run without a composite manager. It works under
Unity, GNOME, KDE, and Xfce. This tutorial shows how to install and use
Glx-Dock/Cairo-Dock on an Ubuntu 12.04 desktop (with Unity).