[Corpora-List] Computer-mediated corpora

[Cassandre Creswell]

Hi,

Does anyone know of any publicly-available, task-oriented,
computer-mediated, synchronous, human-human dialog corpora besides the
Coconut corpus (http://www.pitt.edu/~coconut/coconut-corpus.html)?
Multi-participant interactions are fine too, but I'm looking for something
more constrained (in participants, topics, and/or functions) than, say, the
typical IRC.  


Thanks,
Cassie Creswell