SVM

SVM:

general: http://www.support-vector-machines.org/

LIBSVM: http://www.csie.ntu.edu.tw/~cjlin/libsvm/ (C++)
SVMLIGHT: http://svmlight.joachims.org/ (C++)

BIOJAVA: http://www.biojava.org/ (The package org.biojava.stats.svm contains SVM classification and regression.) (JAVA)

Package pt.tumba.ngram.svm: http://tcatng.sourceforge.net/javadocs/pt/tumba/ngram/svm/package-summary.html (JAVA)

The following packages either implement SVM by themselves or wrap some SVM packages written in C/C++.

RapidMiner: http://rapid-i.com/
WEKA: http://www.cs.waikato.ac.nz/ml/weka/
MALLET: http://mallet.cs.umass.edu/
MINORTHIRD: http://minorthird.sourceforge.net/