NaSPA: Network and Systems Professionals Association - User group. Primary focus is z/OS systems programming. Mike Murach's Mainframe Books - Publisher of books on COBOL, DB2, CICS, z/OS JCL, TSO, VSAM, IMS, and VSE/ESA. Sample chapters and code can be downloaded. Mainframe Programming - Categorized page of links for IBM mainframe programmers. Mainframes.com - Mainframe programming information, including a large dictionary and links to downloads and manuals. Jaqui's Papers & Presentations - 10 years of technical conference papers and presentation notes by Jacqui Lynch of Circle4 Consulting. Performance, capacity planning and security, including VSAM, z/OS, Linux, TCP/IP and storage management. Mainstar Software: Resources - Although focused on z/OS storage management, many of the VSAM documents, for example, also apply to VSE/ESA and z/VM. White papers and other articles, much of it vendor-neutral. RACF Glossary - A selection of terms, with definitions, taken from an appendix found in most IBM RACF manuals. VSAM Demystified - An IBM redbook covering basics, performance, recovery and management, with sample code in an appendix. Viewable on-line or downloadable as an Adobe Acrobat .pdf file. Mainframe VM & VSE Page - Links compiled by Johan van Arendonk. CICS: Bob Yelavich - CICS technical information from a retired IBM expert. LISTSERV at the University of Georgia - RACF-L: RACF Discussion List IBM-Main FAQ: Frequently-Asked Questions - Common questions and answers about the IBM-Main discussion list. IBM ShopzSeries - An on-line tool (registration required) for IBM z/OS, z/VM, z/VSE customers to order tailored product and service packages, review their software licenses and plan for future upgrades. Operating Systems for IBM Mainframe Servers - IBM starting point for mainframe OSs. Links to home page of each OS, with brief descriptions: z/OS, z/OS.e, Linux on zSeries, z/VM, TPF and z/VSE. CICS - IBM home page for Customer Information Control System (CICS). Includes links to support, download, case studies, library, services, events and education. CICS is a transaction processing teleprocessing monitor that runs on z/OS and VSE/ESA, though there have been z/VM and non-mainframe versions. DB2 Server for VSE & VM - IBM home page for Database 2 running on z/VM and VSE/ESA. Overview and associated products, with links to features and benefits, system requirements, success stories, news, events, education and support. Formerly named SQL/DS, DB2 is a relational database management system (DBMS). Transaction Servers and Tools eNews - An IBM monthly publication focused almost entirely on CICS. TPF Family Libraries - Access to the IBM TPF Product Information Center, on-line manuals for TPF, TPFDF, EOCF/2, TPF Operations Server and IIOP Connect for TPF, and order information for CD-ROM and printed manuals. WebSphere - Large IBM product family encompassing middleware and other application delivery software that provides Web-based access to an organization's application software. Including WebSphere MQ, the former MQSeries. VTAM for z/VM and VSE/ESA - IBM home page for Virtual Telecommunications Access Method (VTAM); the z/OS version is part of Communications Server. Includes links to the latest version's announcement letter, documentation and storage estimates. TPF: Transaction Processing Facility - IBM home page for TPF. Despite the name, TPF can be run as a stand-alone operating system on IBM mainframes. IBM Storage Software - IBM home page for mainframe storage software, including DFSMS, DFSORT and DataCore SANSymphony, with a link to the TotalStorage Software Roadmap. SDS, Dictionary of the Mainframe World - Descriptions of mainframe-related terms. Mainframe Forum - Mainframe COBOL, DB2, JCL, CICS , VSAM discussion forums, job vancancy information, interview questions. Free tutorials on JCL, DB2. IBM Mainframe Tutor - Site dedicated to mainframe tutorials and important links. Best JCL, DB2 tutorials collected. Links to manuals, tutorials. DITTO/ESA - 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.