PLT Scheme becomes Racket

PLT Scheme is not only alive and well but has a new name and home: Racket at racket-lang.org

Think hack-a-rocket or the planet-scheme.

Racket is intended to foster experimentation and innovation with domain-specific languages.

I am a big fan of the Curl programming language from curl.com because it has DSL-friendly macros and is both expression-based and functional and declarative and class-oriented. 

At en.wikipedia.org you will see Racket in the multi-paradigm category when I get a moment - for now they have some discussion of this at wp.

Meanwhile Rebol3 works its way towards beta ...