AIGA conference procedings are available; many huge PDFs, audio & video files, and interesting little sketches I guess you had to be there for to really get. Some of my favorites: Ellen Lupton’s Typophilia: Love, Death and Typography” PDF (33mb) and Stefan Sagmeister’s “Design and Happiness” PDF (253mb) or MP3 (36mb). (Even more Sagmeister: Hillmancurtis has a nice collection of interesting video interviews and short films including this interview with Mr Sagmeister. PingMag from Japan has their monthly interview with him.)