Want to make your desktop beautiful with stunning wallpaper? Then have a look at desktopnexus.com. Here you will find thousands of gorgeous wallpapers on all kinds of themes from nature and animals to architecture and cars. The really clever thing about this site is that it detects your screen resolution and crops and resizes the image to fit perfectly on to your desktop.
If your feeling creative why not have a go at creating your own wallpaper and uploading it to the site for others to enjoy.