I'm setting up a wallpaper site for my photography. What is a good default size I should make available for desktop wallpaper?
Average Users Screen Resolution Size (By Percentage of Users) 640x480 and below 0.13% 800x600 8.92% 1024x768 61.57% 1280x1024 25.71% 1600x1200 and above 3.68%
One more dumb question: I have a Mac so I don't know how this works on windows. If you set an image as your wallpaper with a size larger than your desktop, will it shrink to fit, assuming it is the same dimensions?
Yes it will shrink to fit your desktop size, just right click on your desktop and you can easily get to the settings.
You can set different settings on windows. You can have it scale to monitor, you can have it keep its resolution, or repeat.