IBM home page for zSeries/Operating System (z/OS). Information on the latest version with links to an overview, recent announcements, software, migration and installation, news, support, downloads, education, library and ease of use issues. z/OS replaced http://www.ibm.com/servers/eserver/zseries/zos/
Provides z/OS-based mainframe application concepts, techniques and examples, with special emphasis on integration with the Internet. Hosted by a California consulting firm. http://www.simotime.com
Cheryl Watson specializes in z/OS tuning. This site offers access to some of her free reports and details on how to acquire her chargeable materials, including her Tuning Newsletter, CPU chart, classes on video, and BoxScore and GoalTender software. http://www.watsonwalker.com
IBM home page for Data Facility Sort (DFSORT). Includes links to product details, publications, support and downloads. DFSORT is sort/merge software with utility capabilities such as data analysis, conversion and reporting. http://www.ibm.com/servers/storage/support/software/sort/mvs/
IBM home page for Information Management System (IMS). Information on the family of software with links to a library, success stories, news, events, education, services and support. IMS is a transaction processing system (IMS/TM), a hierarchical database http://www.ibm.com/software/data/ims