While you are in either Google Maps or Google Street View you can make use of the following keyboard shortcuts to navigate your way across the map/image. Let us know if you find other key combos that work.
Google Maps shortcuts
Pan left, right, up and down via the arrow keys.
Pan wider (left, right, up and down) with the Page Up, Page Down, Home and End keys.
Zoom in and out with the plus (+) and minus (-) keys.
Double-click to zoom: – Double left-click to zoom in, and double right-click to zoom out (Ctrl+ double-click for Mac users).
Scroll wheel zooming – Use the scroll wheel on your mouse to zoom in and out of the maps.
Google Street View Shortcuts
a (or left arrow key)* – rotate camera 45 degrees to the left.
d (or right arrow key) – rotate camera 45 degrees to the right.
w (or PageUp key) – look up towards the sky. (os x: go forward)
s (or PageDown key) – look down towards the ground (os x: go backwards).
up arrow **,*** – go forward
down arrow**,*** – go backward
+ (plus key) – zoom in for a close-up view.
– (minus key) – zoom out one level.
double click the circle: jump the that view point
double click the rectangle: zoom in to that point.
TAB key: access various controls on the screen
Numerical 3 key: Turn on/off 3D mode.
Notes:
*A, S, D, W keys don’t work while in full screen mode.
** Make sure that the zoom level is set to none or else the up and down arrow keys will make you look up or down.
*** The arrow keys no longer work in Streetview loading on Safari 5.1 running on Mac OS 10.6.8. Inputs have to be made using the cursor and “compass” in the upper left of each Streetview page.