About Planet Mainframe

Planet Mainframe is the premier digital voice for the global mainframe community. A vendor-neutral publication, Planet Mainframe features experts, thought leaders, and new-to-the-workforce perspectives on mainframes, hybrid architectures, AI, AIOps, cloud, and distributed systems. Our flagship properties, Cheryl Watson’s Tuning Letter, the Arcati Mainframe User Survey & Yearbook, and the Virtual User Groups connect IT leaders and decision-makers worldwide. Planet Mainframe recognizes Influential Mainframers and offers high-impact sponsorship opportunities.

Learn more at planetmainframe.com.

Cheryl Watson's Tuning Letter
Arcati Mainframe Navigator 2026
Mainframe Virtual User Groups