A good book

I am currently reading this book

http://www.amazon.com/Using-Language-Herbert-H-Clark/dp/0521567459/ 
sr=8-1/qid=1171472339/ref=pd_bbs_sr_1/103-3446347-4045435? 
ie=UTF8&s=books

I think that it may be useful background reading for the SOA effort.

It is a philosophy book; but pretty relevant.

Frank