I've deployed new icons in the application. These are
Famfamfam Silk icons, a collection if 1000(!!) free (under the Creative Commons license) icons of really high quality, with very broad coverage. If you're looking for icons in your web application, you know where to go from now on. Note that the Silk icons are not the only ones available. Check
all icons at Famfamfam, inluding
country flags, and
mini icons.
Big thanks to Mark James, the author of those icons!