- TryHackMe: Linux Fundamentals Course
- Hands-on learning for cybersecurity and Linux fundamentals. Free account required; limited daily access to browser-based VMs.
- Linux Foundation: Free Courses
- Access free courses occasionally offered by The Linux Foundation.
- LinkedIn Learning: Can sometimes access through local libraries
- [$] Humble Bundle: Book Bundles
- Pay-what-you-want bundles for books on CyberSecurity, Linux, Programming. Check for current and upcoming bundles.