Space Navigator

For Google SketchUp and Google Earth, I purchased this.

Google SketchUp
To watch Ziva Nissan, Product Manager demonstrate SketchUp with a 3Dconnexion SpaceNavigator, click image >> YouTube
http://www.3dconnexion.com/solutions/sketchup.php
SketchUp Gallery
http://www.sketchup.com/?sid=485

Google Earth
The Ultimate Earth Experience
Fire up your 3Dconnexion navigation device and get ready to see Google Earth version 4 and the world like you've never seen it before.
3Dconnexion lets you fly through canyons and valleys, soar over and around mountaintops, dash down streets or orbit the earth all in one seamless movement. No more tiresome clicking on your mouse and program buttons to just to move from place to place or to change views. 3Dconnexion, quite literally, takes Google Earth to a whole new level.
"For anyone who has ever dreamed of flying..." - NY Times
http://www.3dconnexion.com/solutions/google.php
Google 3D Warehouse
http://sketchup.google.com/3dwarehouse/
日本語サイト
http://www.3dconnexion.jp/PRODUCTS-JC.HTM