Here are some of my favorite Google hoaxes from April Fool’s. Click the picture to be taken to Google’s April Fool’s day hoax page.
Google Blimp Ads
A workout program for your fingers.
A job posting seeking someone to fill in auto-complete data in Google's search box
Voicealyzer stops you from drunk-dialing
Google Docs Motion lets you spell words with your body
Google Gmail Motion lets you control Gmail through gestures
Google Cow lets you see inside the cow
Google Friendship - QUICKLY slapped with an "april fool" stamp
The Chrome Light extension turns Chrome to a text-based browser