Derek Hansen helps run MedShelf.org and is the primary researcher of the associated research project. He is an assistant professor at the University of Maryland's iSchool interested in how information technology can be used to improve health care in general and online medical support communities specifically. You can reach him at dlhansen at umd dot edu or by phone at (301) 405-7622.
On a personal note, I have really enjoyed working with GIST Support International and learning from the many insights they have gained and shared so freely with others. I am the father of 4 daughters and live in the D.C. area.