Links

Companies

A collection of links to mainframe hardware and software companies.

• Computer Associates
• Compuware
• IBM
• SDS
• Serena

IBM Documentation

As it is very hard to find any useful documentation on the IBM website, the link below is to the library containing all the manuals in book (and sometimes PDF) format.
At the bottom of the page are links to other libraries for different platforms.

• IBM Library Server Library

Other sites

Here are various mainframe related links I've found while surfing the web.

• MVS Forums
• Search Data Center