I've been relying on the National Geographic Photo of the Day for my desktop backgrounds for years now. They are always great shots, usually simple enough to put behind the plethora of icons i like to keep on the desktop. (I know Savage hates my desktop, both the virtual and actual but he that's whole 'nother blog.) I mix the shots I get from NGPOTD (i love acronyms) with my own pics taken with my Cybershot. They stay up for a few months until I get bored of looking at the same open road, or the same shot of Mephistopholes rolling her eyes at me.
The pic above will stay on my work desktop for a while, I love the sense of travel and adventure it gives me while sitting in my lonely cubicle. I will prolly replace it with something like this:
Or maybe this:
Ok, maybe not that last one but you have to admit that Google's image search can be very misleading. That pic came up after I searched for "grotesque." Racist bastards.