Backlight.dev showcases a curated list of the best design system documentation sites, offering inspiration and insights for designers and developers. The article highlights notable examples such as Atlassian Design System, Auro by Alaska Airlines, and IBM's Carbon Design System. Each entry provides a brief overview of the system's features, strengths, and unique elements, making it easier for users to explore and learn from the industry's best practices. This resource is perfect for anyone looking to enhance their design system knowledge and implementation strategies.