These are some of the formal presentations that I've given at various venues. Mostly at the St. Louis GNU/Linux Users Group, and the St. Louis UNIX Users Group. I've also spoken to larger groups at conferences and such.
I try to make all my presentation materials available on this page, but that's not always possible. Also note that I tend to provide additional material verbally, that's not included in the text of the presentations. So you should always attend live when I'm presenting! ;)
Presentations are listed in chronological order, with the most recent listed first.