http://jhunix.hcf.jhu.edu/~rajshah
http://Kiwi.futuris.net/linen/special/tour.html
http://dcs01.jpl.nasa.gov/~scott
http://harlie.ee.cornell.edu/~john
http://harlie.ee.cornell.edu/~john/nnp.html
http://ourworld/compuserve.com:80/homepages/Greg_Waters
http://www.bbt.com/~beauvais/index.html
http://www.ccn.cs.dal.ca/~aa274/home.html
http://www.ccn.cs.dal.ca/~fred
http://www.inforamp.net/~drumz/hearsay/