Found an interesting article where Wandora is used to aid document clustering:
Muhammad Rafi, M. Shahid Shaikh, Amir Farooq. Document Clustering based on Topic Maps. International Journal of Computer Applications (0975 – 8887) Volume 12– No.1, December 2010
Online version of article is here http://www.ijcaonline.org/volume12/numb ... 872204.pdf