The leading website in the USA on homes and houses is HomeStore including its site realtor.com (buy and sell houses, as also home finance, and find a mover,) as well as homebuilder.com (build houses), springstreet.com (apartments and rentals), and home and garden.
Homes.com also has a good selection of new homes and residential properties.
The U.S. Department of Housing and Urban Development (HUD) has a lot of information at its Homes and Communities site.
Better Homes and Gardens has a House and Home section inlcuding a decorating center, home plans, a how-to encylopedia and much more.
For high-end properties ("distinctive properties and estates") see the Real Estate Journal at the Wall Street Journal.
