This is a very robust collection located in the state of Washington and is unique because it combines not only records from the various state agencies, but also from the counties and towns.
You can view the results using the special DjVu Browser Plug-in from LizardTech to view the images, but they provide a link to easily download the special reader to your computer. I had difficulty getting the link to work. But, if that doesn't work you can view the results as a jpg image. There's also information in the site about ordering paper copies and the costs. However, the on-line data is free to access and free to use.