A1-Homotopy Theory for non-mathematicians
I just found this very nice talk of Voevodsky (2002) about
-Homotopy Theory - where he explains it for non-mathematicians
The PDF is available here, the video is available at Clay Mathematics Institute: Voevodskys talk about A1-Homotopy Theory
Maybe your browser can show embedded videos (via HTML5 video tag):
Further reading:

Pingback by Konrad Völkels Blog » Walkthrough to Voevodsky: A1-homotopy theory of schemes (1999)
2009-10-11, 20:48
[...] just continue reading the paper we already started with But for any introductory notes, I refer to my previous posting about an introduction by Voevodsky himself and this wonderful paper of Dwyer & Spalinski which makes one comfortable with model [...]