25 Best Mainframe Blogs to Follow in 2026

1. Planet Mainframe

+ Follow Blog
Description The world's premiere mainframe blog, providing resources for leading-edge mainframe technology and open discussion to the mainframe community.
Twitter 1.1K Domain Authority 32 Get Email Contact Read Now

2. BMC Mainframe Blog

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Description BMC helps customers run and reinvent their businesses with open, scalable, and modular solutions to complex IT problems.
Email ****@bmc.com
Facebook 65.1KTwitter 49.5K Domain Authority 75 Get Email Contact Read Now

3. IBM Developer » IBM Z Blog

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Description This is IBM Z Blog by IBM Developer featuring content related to IBM z/OS, IBM LinuxONE, COBOL, z/OS Connect, and Cloud-native development tools.
Facebook 149Twitter 122K Domain Authority 93 Get Email Contact Read Now

4. Mainframe, Performance, Topics

https://mainframeperformancetopics.com/blog-feed/ + Follow Blog
Description This is Martin Packer's personal blog. It covers a lot of topics, from Mainframe Performance to iOS Automation - and many places in between. you'll find him writing about lots of different things. Things that cover the diverse aspects of my geeky existence. Things he finds fun to think about and write about.MORE Email ****@uk.ibm.com
Domain Authority 19 Get Email Contact Read Now

5. Open Mainframe Blog

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Description The Open Mainframe Project is intended to serve as a focal point for deployment and use of Linux and Open Source in a mainframe computing environment. The Project intends to increase collaboration across the mainframe community and to develop shared tool sets and resources.MORE Twitter 4.3K Domain Authority 44 Get Email Contact Read Now

6. Watson Walker Blog

https://watsonwalker.com/blog/ + Follow Blog
Description Cheryl Watson is known around the world for her passion and enthusiasm for IBM mainframes and the software that runs on them. She is most well-known for her z/OS (formerly MVS) newsletter, Cheryl Watson's Tuning Letter, published since 1991.MORE Email ****@watsonwalker.com
Twitter 326 Domain Authority 23 Get Email Contact Read Now

7. 21CSW Blog

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Description The official blog page for 21st Century Software. We are a software company that works with IBM to create resiliency and protect data. Our blog will cover IBM Z, Mainframe Software, and Data Protection.MORE Email ****@21csw.com
Facebook 96Twitter 263 Domain Authority 30 Get Email Contact Read Now

8. Mainline Blog

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Description Keep up with the latest IBM Z and mainframe by Mainline.com. Mainline Information Systems is an information technology company offering solutions encompassing server, storage, software, services, & financing.MORE Email ****@mainline.com
Facebook 453Twitter 912 Domain Authority 56 Get Email Contact Read Now

9. Astadia Blog

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Description Astadia is the industry leader for mainframe migrations and modernizations. Here, Astadia Blog provides all content on IBM Mainframe Migration.
Email ****@astadia.com
Facebook 792Twitter 4.4K Domain Authority 39 Get Email Contact Read Now

10. LzLabs Blog

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Description LzLabs Software Defined Mainframe® enables both Linux and Cloud infrastructure to process thousands of mainframe transactions per second, while maintaining enterprise requirements for reliability, availability, serviceability, and security.MORE Email ****@lzlabs.com
Facebook 107Twitter 424 Domain Authority 33 Get Email Contact Read Now

11. All about IBM Mainframes

https://ibmmainframes.com/ + Follow Blog
Description IBMMAINFRAMES.com is an independent software organization, started in 1998 in Chennai by a team of 25 unique-minded mainframe professionals to make a communication channel among worldwide mainframe programmers by providing technical support, training, and B2B software products.MORE Domain Authority 34 Get Email Contact Read Now

12. The DB2 Portal Blog

https://db2portal.blogspot.com/ + Follow Blog
Description News, views, and items of interest on DB2 database management and mainframe systems.
Twitter 8.1K Domain Authority 28 Get Email Contact Read Now

13. Robert's Db2 Blog

https://robertsdb2blog.blogspot.com/ + Follow Blog
Description This is the blog of Robert Catterall, an IBM Db2 for z/OS specialist. The author will highlight IBM tools that can help DB2 for z/OS people optimize the management, performance, and availability of mainframe DB2 systems.MORE Email ****@gmail.com
Domain Authority 23 Get Email Contact Read Now

14. DancingDinosaur Blog

https://dancingdinosaur.wordpress.com/ + Follow Blog
Description Alan Radding, the author of DancingDinosaur, is a 20-year IT industry analyst and journalist covering mainframe, midrange, PC, web, and cloud computing. Feel welcome to check out his website .MORE Email ****@gmail.com
Twitter 630 Domain Authority 30 Get Email Contact Read Now

15. Mainframe Debate - Steven Dickens

https://mainframedebate.com/ + Follow Blog
Description Your go-to blog for everything Mainframe, z Systems and LinuxONE.
Twitter 9.3K Domain Authority 19 Get Email Contact Read Now

16. Interskill Learning

https://interskill-learning.blogspot.com/ + Follow Blog
Description Interskill Learning develops and supports the global Mainframe Computing Industry's only comprehensive curriculum of self-paced e-learning!
Email ****@interskill.com
Facebook 318Twitter 884 Domain Authority 7 Get Email Contact Read Now

17. PSR Incorporated Blog

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Description PSR mainframe experts share insights into all things mainframe. From the latest news to tips and tricks, this is your source for mainframe news.
Email ****@psrinfo.com
Facebook 21Twitter 13 Domain Authority 21 Get Email Contact Read Now

18. Mainframe Update Blog

http://mainframeupdate.blogspot.com/ + Follow Blog
Description Mainframe Update Blog by Trevor Eddolls. Trevor has an extensive 40-year background in mainframes and IT and has been recognized as an IBM Champion from 2009 to 2020 for his leadership and contributions to the Information Management community. In this blog, he provides technical articles and mainframe-related information.MORE Email ****@itech-ed.com
Domain Authority 19 Get Email Contact Read Now

19. The Punctilious Programmer

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Description A blog covering video articles and word documents that cover how to program in IBM mainframe assembler language. Learn IBM System/z Assembly Language, Cobol, and more.
Email ****@columbusstate.edu
Domain Authority 9 Get Email Contact Read Now

20. I Am A Mainframer Blog

https://iamamainframer.blogspot.com/ + Follow Blog
Description This blog contains posts related to IBM Mainframe. You'll find more posts written about COBOL, REXX, DFSORT, and Master the Mainframe.
Email ****@gmail.com
Domain Authority 3 Get Email Contact Read Now

21. Mainframe Nation Blog

https://mainframenation.com/blog/ + Follow Blog
Description Hi, I'm Abhishek Rathi. I have 8 years of experience in Mainframes. I published my first course on Udemy in Jan 2017. There were no courses about Mainframes on Udemy at that time. The first course titled TSO/ISPF is an introductory course about Mainframe Technologies. It is meant for those who have no knowledge about Mainframes and want to have a head start in this field. It covers TSO/ISPF in detail and other Mainframe Technologies like JCL, VSAM, CICS, COBOL. The second course covers JCL in detail.MORE Email ****@mainframenation.com
Facebook 521Twitter 93 Domain Authority 15 Get Email Contact Read Now

22. Mainframe Official Blog

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Description With messaging as the foundation, Mainframe is a platform where AI-powered bots - connected to business software you know and love -help you get more work done. Mainframe provides rich, app-like interaction to help you achieve critical workflows that matter to your business and productivity. Like the Bloomberg Terminal in the Finance industry, Mainframe aims to be the command center for knowledge workers everywhere.MORE Email ****@hifi.finance
Twitter 39.5K Domain Authority 32 Get Email Contact Read Now