Windows 8 has introduced a new series of keyboard shortcuts
I have not had to search for this, it is all in windows Help and support
Windows logo key + F1
Keyboard shortcuts
The following table contains new keyboard shortcuts that you can use to navigate around Windows.
Windows logo key*

Search your PC
Ctrl+plus (+) or Ctrl+minus (-)
Zoom in or out of a large number of items, like applications pinned to the Start screen
Ctrl+scroll wheel
Zoom in or out of a large number of items, like applications pinned to the Start screen
Windows logo key*

Open the charms
In an application, open the commands for the application
Windows logo key*

Open the Search charm to search files
Windows logo key*

Open the Share charm
Windows logo key*

Open the Settings charm
Windows logo key*

Switch the main application and snapped application
Windows logo key*

Open the Devices charm
Windows logo key*

Lock the screen orientation (portrait or landscape)
Windows logo key*

Open the Search charm to search applications
Windows logo key*

Open the Search charm to search settings
Windows logo key*

Show the commands available in the application
Windows logo key*

Switch input language and keyboard layout
Windows logo key*

Change to a previously selected input
Windows logo key*

Cycle through open applications (except desktop applications)
Windows logo key*

Cycle through open applications (except desktop applications) and snaps them as they are cycled
Windows logo key*

Cycle through open applications (except desktop applications) in reverse order
Windows logo key*

Move the Start screen and applications to the monitor on the left (Applications in the desktop won’t change monitors)
Windows logo key*

Move the Start screen and applications to the monitor on the right (Applications in the desktop won’t change monitors)
Windows logo key*

Snaps an application to the left
Windows logo key*

Snaps an application to the right
Esc
Stop or exit the current task
With many more listed in Help and Support