go to this site
http://mrdoob.com/projects/chromeexperiments/google_gravity/
With a move of the mouse cursor , the elements on the webpage come down giving the effect of gravitational pull. Look below in the pic ....
Sidewiki
Over the past few years, we’ve seen extraordinary innovation in terms of making the web collaborative. So we’ve decided to discontinue Sidewiki and focus instead on our broader social initiatives. Sidewiki authors will be given more details about this closure in the weeks ahead, and they’ll have a number of months to download their content.
Desktop
In the last few years, there’s been a huge shift from local to cloud-based storage and computing, as well as the integration of search and gadget functionality into most modern operating systems. People now have instant access to their data, whether online or offline. As this was the goal of Google Desktop, the product will be discontinued on September 14, including all the associated APIs, services, plugins, gadgets and support.
Image Labeler
We began Google Image Labeler as a fun game to help people explore and label the images on the web. Although it will be discontinued, a wide variety of online games from Google are still available.
Fast Flip
Fast Flip was started to help pioneer news content browsing and reading experiences for the web and mobile devices. For the past two years, in collaboration with publishers, the Fast Flip experiment has fueled a new approach to faster, richer content display on the web. This approach will live on in our other display and delivery tools.
The rest of the list includes Aardvark, Google Maps API for Flash, Google Pack etc.