For the benefit of clients and head-hunters, here is a semi-up-to-date:
Though I’ve been working at Desire2Learn for a few years now, I have an older portfolio which describes three successful design-driven contract projects of mine:
User Experience portfolio (2009) in PDF
More recently I’ve been lucky enough to speak on topics such as accessibility and Agile SCRUM at venues such as uxWaterloo and DemoCamp in 2010 and 2011.