I have uploaded the first public release of my MapReduce library to the Boost Vault (I don't yet have write access to the sandbox). The ZIP file is very small, 38Kb, and can be downloaded here: http://tinyurl.com/boost-mapreduce-zip More general discussion about my implementation of MapReduce and associated Distributed File System is on my blog at http://craighenderson.co.uk/blog/ The library is fully functional on Windows with MSVC8, and compiles cleanly with GCC 3.4.4 on Cygwin (but not tested). I'd appreciate comments from anyone with other platforms/compilers on whether it builds & runs. I'll get the code into the sandbox asap, and would welcome patches to support other platforms. Documentation is included in the zip and provides a tutorial and example application. A full reference document of the classes in the library is not yet included, but I'm working on it. I would very much welcome all comments on the library and suggestions on its design and style. I am keen to progress this to submit for a formal review to become a part of Boost in the near future. Many thanks -- Craig Craig Henderson <http://craighenderson.co.uk/> http://www.craighenderson.co.uk http://www.siteupdatenotification.com