Just got this from B & H, no earth shattering revelations but I wish I'd had it 10 years ago. Kind of a nice read for new compressor users
http://www.bhphotovideo.com/c/find/newsLetter/Taming-Your-Audio-Signal.jsp
http://www.bhphotovideo.com/c/find/newsLetter/Taming-Your-Audio-Signal.jsp