The TerraServer-USA Web site is one of the world's largest online databases, providing free public access to a vast data store of maps and aerial photographs of the United States. TerraServer is designed to work with commonly available computer systems and Web browsers over slow speed communications links. The TerraServer name is a play on words, with 'Terra' referring to the 'earth' or 'land' and also to the terabytes of images stored on the site....Visit the USA TerraServer Website

Welcome to the California Geological Survey Web site. We're here to help you find information on the geology, natural resources and geologic hazards of California. ...Visit the Earthquakes & Seismic Safety Website

Builders are never more surprised than when they walk into one of their newly built model homes and find black stains at wall-to-floor joints and on previously pristine carpeting underneath doorways. What causes these stains and how can builders and homeowners prevent them?...Visit the Explanation for Mysterious Stains Website

Removing the renovation headache There are plenty of Web sites that can connect you with contractors in your area.Angie's list provides customer reviews of contractors in several Midwestern cities...Visit the Angie's List Website

By any reckoning, a home is expected to last many years and serve several successive generations. But what about the individual components that comprise the house? How many years of service can a home owner reasonably expect from a roof or a door, a window or a whirlpool tub?...Visit the report on Life Expectancy of Home Components