You do not need to read Norwegian to enjoy the Bad Usability Calendar 2007. Designed to be a constant reminder of why usability matters, the calendar uses a different, bad, design for each month of the year.

NetLife Research has been doing these calendars for three years. They ask for suggestions from the usability community each year, since who knows better what awful things designers have done. This year, they decided to add exaggerated AJAX use, navigation overload, and a topic map that will drop your jaws!

Each month violates a specific design heuristic, so the calendar is also educational for those who are not familiar with UI heuristics. You can download the calendar as a PDF file to share or print out and hang on your wall.