You gotta love google! (by the way, Firefox - you need to update your spelling, "google" is a word :))
The guys started an experiment - features to improve your search experience. For me, it seems to be working ;)
You can select "Alternate views", or Keyboard shortcuts, Left-hand search navigation, etc.
Well, I chose "keyboard shortcuts", since I'm always looking for ways to minimize the use of my mouse. I'm already getting used to it, and it rocks!
Way to gooo google!