William J. Mills
From Project Manager 97Things
William J. Mills is currently a Technical Yahoo! working primarily on software and product security at Yahoo!1. Prior to that he worked at Invisible Worlds (defunct), Wells Fargo running firewalls and on their first internet banking release, various contracting gigs, and for a while for the County of San Diego Superior Court.
 The ! is part of the name Yahoo! and not in this case a punctuation mark.