LEO - REXX-related downloads. - ftp://crydee.sai.msu.ru/pub/comp/os/os2/leo/rexx/
Perl OS2::REXX - Access to DLLs with REXX calling convention and REXX runtime. - http://search.cpan.org/~lbrocard/perl5.005_04/os2/OS2/REXX/REXX.pm
Netlabs.org: Rexx/OS - Intended as a new incarnation of OS/2, being completely realized using the REXX scripting language. - http://rexxos.netlabs.org/
OS/2 REXX: From Bark to Byte - IBM Redbook describing OS/2 REXX and interfaces. - http://publib-b.boulder.ibm.com/Redbooks.nsf/RedbookAbstracts/gg244199.html?Open
REXX Tips & Tricks - About Rexx programming, mostly under OS/2. Converted from INF to HTML as of september 1998. - http://www.markcrocker.com/rexxtipsntricks/rxtt28.1.toc.html
SCOUG - Search results: Rexx. Lots of articles. - http://www.scoug.com/cgi-bin/DocSearch.cmd?SEARCHSTR=rexx&DataBase=Scoug
EDM/2 Magazine - Meta index, Rexx articles. - http://www.edm2.com/common/metaindex.html#Rexx
LogiSoft AR - RexxBOS, OS/2 Rexx library providing complete system interface. - http://www.logisoftar.com/ProductsRexxbos.htm
SRE-http - Web server written primarily in Rexx. Also several Rexx utilities related to directories, GIF, TrueType, MD5/MD4/SHA-1, rsync, GZIP, Blowfish, GDIFF and other. - http://www.srehttp.org/