My talk, La comunidad GNOME para principiantes (The GNOME community for beginners), seems to have gone over well here at ENLi 2008 (the 2008 National Linux Meeting in Puebla, Mexico), with a big audience and interesting followup questions. The slides are available as a collection of plain PNG and JPEG images in a zip archive (use the link above).
I'm having an excellent time. Will post some pictures from the conference later.
My wonderful audience
I clearly didn't bring enough openSUSE discs