I contributed to Spark, a Drupal distribution for an improved authoring experience, including in-place editing, responsive previewing, and advancements in accessibility and usability. Much of this work is now part of core. I assist with theme development and CSS-related issues in the forums and whenever I can on IRC as prestonso.
My freelance studio (est. 2004) provides Drupal-specialized services.
I co-founded the Southern Colorado User Group (SCUG) and helped manage it until 2009. I am also part of the Denver/Boulder and Boston user groups.
Headless Drupal and the Decoupled Front End
Design for Drupal 2015, New England Drupal Camp 2015 (upcoming)
Fundamentals of Front-End Ops
DrupalCon Barcelona 2015 (upcoming), NYCCamp 2015, DrupalCamp NJ 2015
Challenges of Being a Young (Drupal) Developer
The Great Consolidation: Entertainment Weekly Migration Case Study
DrupalCon Los Angeles 2015 (with fluxsauce and drpal)
The Future of HTML and CSS
DrupalCon Amsterdam 2014, BADCamp 2014
Responsive E-mail Design and Theming
Lessons in Spark UX: Prototype, User Test, Iterate
DrupalCon Portland 2013 (with dcmistry)
Frontiers of CSS: Its Past, Present, and Future (in Drupal)
BADCamp 2012, DrupalCamp CT 2012, DrupalCamp NJ 2013
Drupal-Aware Design: Good Techniques for Better Themes
Design 4 Drupal 2012, NYCCamp 2012, DrupalCamp CT 2012
Intensive Beginning Theming
Design 4 Drupal 2012 (with tinycg), DrupalCamp CT 2012
Theming Out of the Box: Designing in Drupal
DrupalCon DC 2009, DrupalCamp Colorado 2008 (with ultimateboy). Notes here and here.