Some good blogs to check out, by listing these blogs I am not implying endorsement or sponsorship:
BMC’s Mainframe Blog can be found here
Destinationz can be found here
Want to know more about Docker and Containers check out Utz Bacher’s blog here
Millenial Mainframers check out this blog
Broadcom blog can be found here
Systems Magazine’s blog can be found here
Check out MicroFocus’ blog here
For a great insight into Mainframe Performance check out Martin Packer’s blog here
For all things Digital Transformation check out Richard Gamblin’s blog here