1. A computer-readable medium storing computer-executable instructions for performing steps comprising: (a) displaying a plurality of item representations each associated with a different item; (b) receiving a user input including a textual criterion; (c) determining a subset of the items to be all of the items that satisfy the textual criterion; (d) displaying the associated item representations for the subset of items so as to have a first display property; and (e) displaying the remaining item representations so as to have a second display property different from the first display property.