No, I am not kidding and Yes, I am shocked to see this as well. Check out the traffic graphical image released by Compete.com given below.
This is for January 2010 and covers US traffic only. So what? US traffic still constitutes considerable share of world wide web traffic and this might as well indicate the things to come soon!
I wonder if people have started to use Facebook as their homepage! No wonder Google has begun to feel the heat from Facebook and that might have prompted them to come up with Google Buzz?