Contexts - Switch between application windows effortlessly — with Fast Search, a better Command-Tab, a Sidebar or even a quick gesture. Free trial available.
WindowFX - Revolutionize your operating system with WindowFX.
VistaSwitcher - VistaSwitcher is an elegant and powerful task management utility for Windows OS.
Compiz - Project information. Maintainer: PS Project Management Team. Driver: Compiz Maintainers. Licence: GNU GPL v2, GNU LGPL v2. 1, MIT / X / Expat Licence.
Witch - Welcome to the world of W. i. t. c. h.
xfdashboard - xfdashboard provides a GMONE shell dashboard like interface for use with the Xfce desktop.