Buying a shiny new Chromebook is an exciting experience. With ChromeOS, you get speed and performance at a lower cost. In fact, many Chromebooks are some of the best laptops you can find under $600. One of the first things you'll want to do when you boot up your new Chromebook is change the wallpaper. We already have an excellent tutorial for changing the wallpaper on a Chromebook, but it's also nice to have a list of apps for finding quality backgrounds.