"On the Google Finance homepage you can see at a glance how major sectors are currently performing in U.S. financial markets. Scrolling over the bar charts will show you more detailed information about percentage increases and decreases for a given sector. To learn more about a given sector, simply click on the name and you'll see how that particular sector is performing compared to the S&P 500."
Google seems to have problems with homepages for services like Google News, Google Finance, that don't have enough content to make people coming.

Update: Octavian Costache (also known as Vivi) tells the story in a funny video.