appindicator

The developers implemented the HUD in Ubuntu 12.04, HUD adopted and further implemented into upcoming releases, such as Ubuntu 12.10 and Ubuntu 13.04.

Essentially, the HUD presents itself as an intelligent menu (a smart menu guesser), meaning, while having opened an application, typing certain characters (like for example cu) after hitting the keyboard's Alt key, summons in the HUD natural, commonly-used actions (such as cut); pressing the Enter key, executes the command.

Opening an image, playing a movie, editing a text document, are actions recorded in Ubuntu by Zeitgeist, Ubuntu's default event logger that pushes logged events into the Dash (and into various applications), thus allowing the user to easily access commonly used files, recently opened applications, web-browsing history, etc.

Indicator Stickynotes is a handy, simplistic yet effective note-taking utility, allowing users to enjoy an intuitive pleasant-to-the-eye note-taking experience.

Indicator Stickynotes comes with sticky-notes as containers for notes, to-dos, ideas, etc, yellow items clearly exposed on the desktop, while accessible and manageable via its appindicator.

Indicator Stickynotes has been updated to another meaningful release, 0.4, introducing interesting features.

ClassicMenu Indicator is a handy lightweight appindicator that brings a GNOME 2-like "old" menu in the comfort of the Unity panel, allowing 1-click access to categorized applications.

ClassicMenu Indicator has just been updated to version 0.07, adding, along with various bug fixes, new categories: Personal, Hardware, System.

The above mentioned categories act mainly as a link to System Settings, including all the of its components.

Classicmenu Indicator is a handy appindicator that allows one to quickly access applications in a traditional "old" GNOME 2 way.

Basically, Classicmenu Indicator behaves just like a regular GNOME 2 menu and features an Ubuntu logo icon for folks that are still familiar with regular system menus.

How do we install Classicmenu indicator 0.06?
Add the following official PPA (Natty, Oneiric)

Zeitgeist is Ubuntu's default logging events application that exposes the events via the Dash in a useful way allowing users to observe/rerun their recent played movies, images, etc.
The "downside" aspect of Zeitgeist is that sometimes we don't want our particular files to be tracked (and exposed in the Dash) for various reasons (like for instance, multiple users on the same computer).

ClassicMenu Indicator is an Application Indicator ("appindicator") that acts like a classic GNOME menu, useful for people who don't like Unity Dash or just want a handy way to access their apps with one click.

ClassicMenu Indicator 0.03 has just been released, adding icons to the menus (no need for tweaks, etc), an appindicator monochrome icon and new entries in the menu (making it complete).