As of August of 2018, Geek University contains more than 12 courses and about a thousand high-quality IT-related articles. I wrote all the content myself and published it for free - there is no paywall, the registration is free, and even unregistered users can access all content.
Currently I'm working on the following topics:
1. Asterisk (open-source PBX)
2. Process Explorer (task manager and system monitor software for Windows)
3. IP video surveillance
4. new CCNA curriculum
All of this costs time and money, so if you find this website useful, please consider supporting it financially. For now, the donations can be made using PayPal. Simply click on this link, type the amount you would like to donate, log in to your PayPal account, and choose how you would like to pay.
Geek University Founder