Other websites with great information on IT related stuff

Paul  S. Randal is the SQLSkills guy. Want to learn in depth about SQL? check out his training. 
Link: https://www.sqlskills.com/blogs/paul/

Brent Ozar is well known by many DBA's ... he/his team created several great tools. 
Link: https://www.brentozar.com/

Dave Pinal is another well known DBA. I have found many tips and tricks here. 
Link: https://blog.sqlauthority.com/

Mohit Goyal has a very in depth site on powershell, database  Ci/CD and more DevOps. 
Link: https://mohitgoyal.co/

4sysops powershell forum
Link: https://4sysops.com/groups/powershell/forum/

Powershell Explained
Link: https://powershellexplained.com/

r/Powershell 
Link: https://www.reddit.com/r/PowerShell/

ZDNet - News about technology. 
Link: https://www.zdnet.com/

Adam Bertram - Adam the Automator
Link: https://adamtheautomator.com/

Kevin Marquette - Powershell Explained
Link: https://powershellexplained.com/