Hi all, Recently I have written a small application, SOMviewer, that is able to graphically display a self organizing map produced with the som algorithm found in the GeneSOM package, clustered by any hierarchical clustering method that produces a merge matrix (agnes, diana, hclust etc..). This application makes it very easy to analyse a self-organizing map. Anyone that would like a copy of SOMviewer can drop me a line, I am making it available as freeware for the R community. It runs under windows (XP, ME, 2000 etc...) and Mac OS X. Cheers, Jonck