It can be hard to figure out what a home is worth in good times and even harder to do so in an unsure economy. Zillow.com provides “zestimates” of a home’s value, based on public information. The site provides mortgage rates, prior sale information, tax information, and more. If you happen to drive past a house that’s for sale and want to know more about it, search for the address and you will see the number of rooms/baths, square footage, lot size, year built, nearby schools, and more.