Online Cardsorting
Basic definition
The book "Information Architecture for the World Wide Web" defines Card Sorting as a technique that 'can provide insight into users’ mental models, illuminating the way that they often tacitly group, sort and label tasks and content within their own heads.'
UserZoom has its own propietary remote online Card Sorting tool to rapidly execute sophisticaed remote online card sorting exercies and analyze results of tests performed over large groups of users, in a brief and cost efficient manner.
It has been designed to find patterns in how 'real users' would expect to find content, how they 'mentaly' organize information and how they name or describe certain groups of information items.
See some examples of the results 
