Links:Hierarchical clustering


 * Hierarchical Clustering Algorithms - an introduction by by Matteo Matteucci
 * With a Java applet demonstrating agglomerative hierarchical clustering


 * K-means and Hierarchical Clustering - Tutorial Slides by Andrew Moore
 * Principles of Knowledge Discovery in Databases - Chapter 8: Data Clustering by Osmar R. Zaïane
 * How to explain hierarchical clustering by Stephen P. Borgatti
 * Clustering methods and algorithms by Maria Irene Miranda

Implementations

 * Hierarchical Clustering - in R
 * FindClusters - in Mathematica