Windows 8 Keyboard shortcuts

23 new keyboard shortcuts for Windows 8 | How To - CNET:

Getting around in Windows 8 @ Windows Experience Blog

Keyboard Shortcuts for Windows 8 by Kent Walter @ Google Drive

Win+X: Open system utility settings menu
Win+PrntScrn: Take screenshot and save to Pictures
Win+Tab: Open switch list
Win+T: Preview open windows in taskbar
Win+U: Open Ease of Access Center
Win+Spacebar: Switch language and keyboard
Win+Enter: Open Windows Narrator

Win+D: Open Desktop
Win+,: Peek at desktop
Win+B: Back to desktop

Win+Z: Get to app options
Win+.: Snap app to the left
Win+Shift+.: Snap app to the right
Alt+F4: Close an app

Win+Q: Search apps
(tip: an even easier way to search apps is to just begin typing from the Start screen)
Win+W: Search settings
Win+F: Search files

Win+C: All charms
Win+Q: Search charm
Win+H: Share charm
Win: Start charm
Win+K: Devices charm
Win+I: Settings charm