Creative commons is a search engine that is used to find material that is legally available to use. I’m not saying that if you go grab a copyrighted image and use it without consent that the government is going to hunt you down but we should use creative commons because it gives proper credit to the person who did the work to create whatever you are using. It’s playing it safe while at the same time respecting the creators. Give me a reason that you shouldn’t use creative commons besides the bland argument that it takes longer. You’ll have a tough time doing it.
Here are just a few examples of how to use creative commons to find the information you need: