The Windows 7 Taskbar
Windows 7 offers a new way of controlling your desktop, managing your windows, and launching applications. The Windows 7 Taskbar is a new application-launching and window-switching mechanism that consolidates the functionalities from previous Windows OS Desktop mechanisms such as Quick Launch, Recent Documents, Notification area icons, desktop shortcuts, and running application windows.
How to Install Windows 7 Release Candidate
How to Unlock hidden themes on Windows 7
There are some additional themes on Windows 7 you can add which are hidden.
What are the security features of Windows 7
How to improve the response time or delay of the Live Preview and Aero Peek Previews windows.