Learn from others - don't make the same old mistakes, make brand new ones.
Winter 2008
July 2007: slides, audio
Summer 2007: article
July 2007: audio
Winter 2006: slides and transcript
Dream Weaving
Where did we come from? 
Family Feud Online Party 
Catan! Big Huge Games Makes a Little One (XBLA)
Virtual Villagers 
Sandlot Games
Puzzle Quest (DS) 
A Brief History of Casual Games
Tradewinds/Plantasia Postmortem