So you've created a brilliant blog post and you're ready to share it with the world, but it's missing something. It's missing that thing that will grab a viewer's attention and make them want to read. What you need is a great image to go with your post, but you can't just go out into the interwebs and use whatever you find. You have to have good Internet etiquette and that means knowing where to find images that you can use either for free, or that are royalty-free or under Creative Commons license terms. If you don't follow the rules, you might find yourself in a big steaming bowl of trouble soup.