WordCamp STL: How To Prepare and Submit Your Theme to the WPORG Theme REpository (and get it approved)
WordCamp KC: The WordPress Theme Repository
Resume for Chip Bennett - 2015
WC Louisville 2013 - What Makes a WordPress Theme "Premium"?
WordCamp TOR: Beyond The Guidelines - Theme Development Best Practices (Vol 1)
WordCamp KC 2012: Simplifying Theme Functionality
WordCamp Nashville 2013 - Custom Layouts Without Custom Page Templates
WordCamp Columbus 2013: Custom Layouts Without Using Page Templates
WordCampGR 2012: Developing Child-Theme Friendly Themes