IBM subsidiary best known for multi-platform Notes and Domino messaging groupware supports z/OS-based Domino servers.

Source of support for all Lotus software products including a large on-line searchable knowledgebase of known issues and solutions.

IBM's product offering based on the DCE open standard for distributed computing.

DGXT is an optimized software-based XSLT interpreter that is cross-platform and fully compliant with the current XSL specification. The XA35 XML Accelerator is a hardware-based solution that speeds XSLT, XPath, XSD (Schema validation) by 30X or more [...

Access to all IBM announcement letters, sales manual, press releases, red books, white papers and catalogs, with search for most.

Commercial LDAP server. Includes overview and technical information.

IBM Enterprise PL/I for z/OS, AIX, MVS/VM, VSE, Windows.

IBM's official Rexx site. With news, background, books, tutorials, documentation and links.

NetRexx is a human-oriented programming language which makes writing and using Java classes quicker and easier than writing in Java.

Tools that helps knowledge workers to present organized, understandable information in the right business context. Includes case studies and trial version.