For membership information and registration, contact John Hatfield at 1 Potter Pond, Lexington, MA. 02421, phone: 781.862.6349, email: Jhnhtfld2-at-cs.com

Website-based inquiries: Juhan Sonin, juhan-at-mit.edu

Newsletter: John Hatfield, Jhnhtfld2-at-cs.com

Executive issues: Juhan Sonin, juhan-at-mit.edu