Extreme Fishbowl. - Zhon Johansen; Ken Auer; Brian Button; Alistair Cockburn; James Grenning; Kay Johansen; Duff O'Melia (XP/Agile Universe, 2002)

XP Fest. - Nathaniel Talbott; Duff O'Melia (XP/Agile Universe, 2002)