Did you know that there are tons of sites that provide Creative Commons Licensing?
What is CCL? It basically sums up to awesome people providing content for free for anyone to use in a public domain without commercial or industrial use.
Instead of content that is copyrighted to its owners, Creative Commons allows people from all over the world to share willingly and generously things that they have created for free, ranging anywhere from media like images/videos to software programs to applications.
A few good ones that I have used are:
Share any that you may have come across and found beneficial in the comments section!
Clarity through my lens..... 