Bill Quick points to Zillow.com - Your Edge in Real Estate which he describes as "a handy little tool for obtaining a rough approximation of what you might be able to sell your home for."
He goes on to explain how he tweeked it to get a more accurate estimate, but me? I spent a good part of the afternoon just plunking in addresses. The house the Deadly Duo have a contract on, of course, and playing putting in the address of just about every darned place I've ever lived.
Without any tweeking, Zillow's median estimate on their "maybe house" was within $10K of the sale price. Cool!
When I called up the address of the house I was raised in I almost croaked. Dear gawd!
But I spent far more time looking at the pictures of the houses, zooming in and out getting the best angle. Yes, angle.
I gotta tell you, I've got a sneaky suspicion someone using this function might be very embarrassed if they checked their home and discovered when the aerial shots were taken they were . . . uh, like . . . ummmm . . . for all the world to see.