Here are some screenshots from the Gnowsis Graphical User Interface:

Miniquire & PIMO Thing Editor:

 * http://www.gnowsis.org/statisch/0.9/doc/use_cases/_annotating.html

Dropbox:

 * DropBox
 * http://www.gnowsis.org/statisch/0.9/doc/use_cases/_dropbox.html

Tagging plugin:

 * http://www.gnowsis.org/statisch/0.9/doc/use_cases/_tagging.html

Miniquire, Search & Configuration window:

 * http://www.gnowsis.org/statisch/0.9/doc/features.html
 * http://gnowsis.opendfki.de/attachment/wiki/Screenshots/05desktop_search2.png?format=raw