This presentation by Steven Pemberton increases in value over time.
Steven Pemberton's talk from XTech 2008 in Dublin is becoming more relevant with each passing day as yet another service shuts down; Pownce, Ficlets, Stikkit...
Simon's slides and demos from his half-day workshop at XTech.
While I was at XTech in Paris, Ian Forrester took me aside for an interview about microformats. Here's the video of our little chat.
Pausing for breath is for pussies. Simon's slides illustrate how to pack everything including the OpenID kitchen sink into 45 minutes.
The slides of the Hijax talk from the Ajax Developer's Day at XTech 2006 in Amsterdam.