Code for SMO implemented by Xianping Ge can be obtained from
this site.
The implementation of Support Vector Machines jointly developed by C. Saunders,
M. O. Stitson, J. Weston, L. Bottou, B. Schölkopf and A. Smola at Royal Holloway,
AT&T and GMD-FIRST is available here with its reference
manual.