There are many great places to find good picture images. You can even upload your own to an online wiki. Here are some tips to make sure your wallpaper looks great on your computer. Use your own photo as the background image. Once you’ve downloaded the image, you should adjust the settings so it looks good on your computer. You can then add the image to your wiki page or add it to the image library of your site. You can use this resource to find great picture images for educational web pages.