Information Design Using Card Sorting
http://www.steptwo.com.au/papers/cardsorting/

Robertson, James
Step Two
2001

Abstract:

At the beginning of any information design exercise, it is normal to be confronted by a very long list of potential subjects to include. The challenge is to organise this information in a way that is useful and meaningful for the users of the system. A card sorting session can go a long way towards resolving this problem.