My backyard is an empty slate. Only a small covered patio area, no grass, just hard dirt. What are some websites that give good Landscaping Tips and ideas?

It depends on where you are. An outdoor living area that would work well in Florida would not work as well in Montana. The best place to start would be local nurseries, and landscape yards. Find out what kind of grass/plants grow native to your area. That will make it a lot easier to water.
What do you want to do with your yard? Do you want a lawn? Do you want an outdoor living area? a garden? trees?