PLURALSITE
Pluralsight provides online courses on popular programming languages and developer tools. Other courses cover fields such as IT security best practices, server infrastructure, and virtualization.
(ISC)²
(ISC)² provides IT training, certifications, and exams that run online, on your premises, or in classrooms. Self-study resources are available. You can also train groups of 10 or more of your employees.
CYBRARY
CYBRARY Open source Cyber Security learning. The world's largest cyber security community. Cybrary provides free IT training certificates. Courses for beginners, intermediates, and advanced users are available.