A smart use of Twitter: I’m at the Information Architecture Summit, being held this year in the beautiful Peabody Hotel in Memphis. As usual at such geek gatherings, there’s a healthy backchannel running on twitter under the hash tag #ias09. The hotel is following the stream, and answering our questions, such as: Who serves good bbq? Where can we get a real espresso? They’re even using twitter to greet guests, and deal with complaints about rooms at the hotel. And, of course, they throw in a little marketing for their famous ducks. Event venues take note!