RocketDock - RocketDock is a Mac OS X dock clone.

UKUI - UKUI is a lightweight desktop environment based on pluggable framework for Linux and other Unix-like Distributions.

Winstep Nexus - The Winstep Nexus Dock is a FREE* professional dock for Windows. With Nexus, your most frequently used applications are only a mouse click away - and Nexus turns working with your computer into a fun and exciting experience.

Fedora - Fedora creates an innovative, free, and open source platform for hardware, clouds, and containers that enables software developers and community members to build tailored solutions for their users.

ObjectDock - ObjectDock is the most popular animated dock for Windows.

GnomePanel - GnomePanel is a highly configurable launcher and taskbar for GNOME.