IBM REXX Family
Overview of IBM Rexx products and related information.

Jeff Glatt's REXX Page
Developer tutorial, articles, examples, Reginald interpreter, text editor, function libraries and discussion forum.

ONLamp.com: Rexx: Power Through Simplicity
Article by Howard Fosdick shows off several features of the Rexx programming language.

Pigdog Journal: Laughable Technology
Yay for REXX! Column in a satirical online magazine.

Quercus Systems
Personal REXX for Windows 98/NT/3.1, OS/2 and DOS. REXXLIB extensions, papers, freeware collection and consultants list.

RexxInfo.org
Companion site to book about the language, with an annoated link collection.

RexxLA
The Rexx Language Association. With symposion information, ANSI standard and large link collection. Archives available to members only.

RexxTags
Rexx Server Pages compiler for rapid prototyping of XML tags in Rexx. Requires Apache and Mod_Rexx. [Open surce, Common Public License]

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

ToUniteAmerica: The REXX Files
Mainframe programs examples, articles and links. By Gabriel F. Gargiulo, author of Rexx books.

Wikipedia: REXX
Encyclopedia article about the scripting language.

Writing CGI Scripts in REXX
Article from Web Techniques magazine.