Thanks to the Internet, social media, and the Digital Millennium Copyright Act (DMCA), navigating copyright issues has never been harder. And the tragedy of Aaron Swartz underscores just how ill-equipped current laws are at addressing modern copyright issues. But before we can reform copyright law, it’s important to understand it. In our latest song, we’ve broken it all down for you, from public domain to fair use to creative commons. That way, when you post something to the Web, you’ll know your own rights, and the rights of others. (All videos are public domain except where noted).