Over at TechCrunch, a reader tipped them to a new test by Google - to go even more minimalistic on their homepage. The test involves hiding everything on the homepage, save for the Google logo and the search box.
The links for Advertising Programs, Business Solutions, etc. are apparently still there, but unnoticed unless you mouseover them.
The buttons for "Google Search" and "I'm Feeling Lucky" are removed completely, however.
As this is just a test, only a small amount of users will see it. It will be interesting to see if Google goes even more white space in the future.