Anatomy of my menu bar

My menu bar has a growing collection of applications, several I have mentioned already. I will be going into more details about a few more of them in the near future and any others I try or use. Above is my current OS X menu bar.
- ByteController – Controls for iTunes (also enables keyboard shortcuts)
- gCount – Gmail email counter for new & unread emails
- BigPond Cable Login – Daft app that my ISP makes me use
- QuickSilver – Uber quick find
- xScope – Rulers, Screens & Loupe for color picking
- CheckOff – Todo lists
- Bluetooth – For connecting to my Mobile
- Airport – Wireless Connection Status
- Battery – Battery level
- Calendar – Day and Time