Prof. Ken Shan has been awarded the E. W. Beth Dissertation Prize for his Ph.D. thesis "Linguistic Side Effects". This award is given yearly by the Association for Logic, Language, and Information (FoLLI) and is very prestigious. Congratulations, Ken!
The list of past winners can be found at http://folli.loria.fr/content/beth.php. As you check out the list, note that Prof. Matthew Stone has also received this prize in 1999. Very belated congratulations, Matthew! :-)