IBM

Mainframe COBOL, DB2, JCL, CICS , VSAM discussion forums, job vancancy information, interview questions. Free tutorials on JCL, DB2.

IBM home page for Data Interfile Transfer, Testing, and Operations Utility for ESA (DITTO/ESA). Overview of features with links to support, news, library and information. DITTO runs on VSE/ESA, z/VM and z/OS.

A 400 item IBM repository of tools, documentation and utilities from IBM and individuals outside the corporation.

Free software tools for both systems programmers and end users.

Security consulting and software company. ICU (Integrity Concerns Uncovered) runs on z/OS.

Security Administration Manager (SAM) is a family of software, much of which supports the mainframe. SYSTOR also provides consulting, system integration and outsourcing.

JGS provides ftp file transfer and tn3270e 3270 terminal emulation software for Windows workstations connecting to an IBM mainframe, including an encrypted (SSL) tn3270e.

Software and services to support the electronic delivery and presentation of document, report and print stream information, including conversion of IBM's Advanced Function Printing (AFP) format into Adobe's PDF format.

Offers z/OS and z/VSE software solutions: network management and monitoring, security management, data management.

The IBM common run-time environment for popular programming languages.

Mostly links to VM-related information. From Jack J. Woehr of the Rocky Coast Free Board in Colorado.