François Vogelweith is the author of zgegblog, a site that maintains a collection of great GNOME themes. Balanzan (translated: Balance) is one of its most popular creations, a very comprehensive theme based on Ubuntu Jaunty Jackalope, which contains a wallpaper, logon theme, Emerald theme, controls and icons.

Gstyle is a new full Gnome theme manager with some really great features which I am sure you will love if you like to customize your Desktop look constantly. Gstyle can automatically download and install wallpapers, Xsplash, GTK themes, icon themes, full themes, mouse pointers and more from gnome-look, deviantart, customize.org and others, or directly from the software source.

gstyle is a full gnome theme manager this software try to concentrate every possibles themes types in one main window with easy install of new themes form gnome-look, deviantart, customize.org or by direct download from the software.

GDM or GNOME Display Manager will easily allow anyone to fully customize the login screen theme without having to use the command line.There are tons of ready-made, user-submitted GDM themes available that we can just download and effortlessly install.

Bisigi themes had always been my favorite. Initially they started of with 9 themes and now the full set includes 12 mind blowing themes for Ubuntu gnome. And the most interesting part is that, you can download these themes directly from Synaptic.

Gnome-Art Next Generation is the successor of Gnome-Art and lets you change your Gnome-themes (icon-, wallpaper-, splash-,...-themes) with one click. It is in an early stage and under development but it looks very promising already.

When you customized your Ubuntu desktop to replace the brown theme, you may have overlooked the login window. GNOME’s login window, called GDM (GNOME Display Manager), can be easily customized by installing themes.

So, you want to pimp up your Gnome 3 desktop? The good news is that Gnome 3 is incredibly customizable. The appearance of the icons, mouse pointers, window decorations and the Gnome 3 Shell itself can all be altered to suit your tastes, and web sites like Deviant Art have a huge range of themes to choose from.

Looking for some Ubuntu themes? The GNOME themes extras package provides two excellent themes and some popular icon themes.