AI models often use internet content without creators' consent, threatening publishers' revenue and content value. The Really Simple Licensing (RSL) standard, developed by the RSL Collective, offers a solution. RSL allows publishers to declare licensing terms to AI systems, similar to robots.txt, but with enforceable terms. It specifies if content can be used for training or commercial purposes, ensuring AI firms respect these terms. Major media brands like The Associated Press and The Guardian are early adopters, signaling to AI companies that their content isn't free. RSL not only asserts intellectual property rights but also opens monetization opportunities, allowing publishers to become active stakeholders in the AI ecosystem.