Hi Paul, Paul Johnson wrote:

I've noticed that many other languages have a middleware to handle distribution and concurrency issues. Haskell has STM for shared-memory concurrency, but there is no mechanism (AFAIK) for distribution.

You may interested into the Eden project jointly developed at Marburg and Madrid: http://www.mathematik.uni-marburg.de/~eden/ Eden is a kind of Haskell extension for describing process networks and the communication within them. Clemens -- Dr. Clemens Grelck University of Hertfordshire Dept of Computer Science College Lane, Hatfield, AL10 9AB United Kingdom