Clustering softwares

Weka: http://www.cs.waikato.ac.nz/ml/weka/
Orange: http://www.ailab.si/orange
Scipy: http://www.scipy.org/
The open source clustering softwares: http://bonsai.ims.u-tokyo.ac.jp/~mdehoon/software/cluster/software.htm
MICMOD: http://www-math.univ-fcomte.fr/mixmod/index.php
The Semantic Indexing Project: http://www.knowledgesearch.org/
JUNG: http://jung.sourceforge.net/
CompLearn: http://complearn.org/

Just collect them, welcome your adding!