Most real estate brokers have web sites. I found an interesting feature on each of these sites. Better Homes and Garden. This site has links to services to help you relocate across the country. This site allows as online search for available properties.
Many lenders have web sites.
Some offer mortgage qualification through the Internet. Here are a few interesting sites. You can use the Table of Contents link to find the home loan section. Articles explaining aspects of home ownership are featured. You can also begin an application online, or by following the tools link use one of several calculators.