Added company logos where booth size allowed (unless it was just a re-seller or anime, then I didn't even bother).
For a list of vendors by type, check out This Just in from Gen Con's Annotated Vendor List.
Try dragging the map and zooming in by using the mousewheel (or by using the ↑ ↓ keys). This map is made by using the jQuery Mapz plugin. Image map laid out with Image-Maps.com