Ring of sites about NetRexx: the programming language alternative to Java. It's easy to learn and use as Rexx, while being as efficient and portable as Java. This ring collects unofficial sites with documentation, tutorials, tools, utilities for NetRexx and source codes of applets and applications written in NetRexx.
Jax RCFB is a site of computer programming interest which started as a BBS in 1988 and has been on the Web since 1998. The Rexx page covers Rexx (along with many implementations and variants on all platforms), ObjectRexx and NetRexx. There are also some interesting open source items.