If you edit a text file, modify a project or just wanting to keep an eye on your copied items, then, a clipboard manager is definitely a must.
What clipboard managers are "compatible" ("appindicator" support) with Ubuntu 11.04, Natty Narwhal?
Glipper-->uses its own icon, selection support (just select text with your mouse cursor, and Glipper creates a new entry), shortcut for pop-up, many useful plugins, full-fledged help
INSTALL GLIPPER via UBUNTU SOFTWARE CENTER
