Presenting at Big (D)esign Conference 2009 Today

I really really wish I had taken the time to look over and rehearse the presentation I gave way back in March at IA Summit 2009. Why do I do this to myself on nearly every single public speaking engagement? I think I am an adrenaline addict. Or, I must like hurting myself in this way for the endorphin rush. Will post how well/badly it went.