If you're a regular user of Google, here are a few fun tricks that you can try on the site.

Firstly, type "do a barrel roll" (without the quotes) into the search box. Your screen will magically turn a complete somersault. Try it yourself, or just head to www.google.com/search?q=do+a+barrel+roll to see it in action.

For a more gentle effect, type "tilt" into the search box (no quotes needed). It's subtle, but the display definitely develops a slight tilt.

Finally, if you're in the mood for a game, click on the Image Search option, and search for Atari Breakout. The images that make up the search results will instantly transform into a full-scale playable game of Breakout on your screen, which you can control with either the keyboard or mouse!