Fluxspace seeks to add advanced desktop functionality to pure window managers, like Fluxbox. The approach is to leverage existing tools, like Rox Filer and Idesk, with a flexible and modular Python API. Existing modules support desktop icons, panels, dockapp startup and swapping, and wallpaper management. Current features allow each workspace to have its own unique panel, icons, wallpaper, and running applets. Creating new Python modules is easy.
xmonad is a tiling window manager for X. Windows are arranged automatically to tile the screen without gaps or overlap, maximising screen use. Window manager features are accessible from the keyboard; a mouse is optional. xmonad is extensible in Haskell, allowing for powerful customisation. Custom layout algorithms, key bindings, and other extensions may be written by the user in config files. Layouts are applied dynamically, and different layouts may be used on each workspace. Xinerama is fully supported, allowing windows to be tiled on several physical screens.
Pop3eye is a POP3 email notifier. It can be placed in a "dock", or use a regular or undecorated popup window. Regular expressions are used to filter email. It can display up to 20 partial lines of the email body in a tooltip window. It can monitor and display an unlimited number of accounts. You can choose to show messages using regular expressions, or delete messages from the server.