In my last several assignments I have been surprised by how many clients are interested in coming to a deeper understanding of their content flow through card sorting. I have always been a big believer in the use of card sorting to help myself and clients come to a greater understanding of how they want their content/data to flow through their sites. Likewise, I believe that any opportunity you give your users the ability to participate in the development of their site, entitle them to ownership, the better the chances are of your overall success.
We as a team are lucky to have a brilliant Information Architect (Cathy Galecki...Shout Out!!) who has really spent a lot of time standardizing our card sorting process. She has been my go to person when I have had questions on both estimating and performing the card sort.
If you would like to know more about our card sorting activities feel free to reach out to me or Cathy.