The Homebrew SE site is very fortunate to have Denny Conn as a moderator and regular contributor, answering questions and providing guidance on this site on a daily basis. With hundreds of batches of beer to his credit, Denny has a vast knowledge of homebrewing, spanning everything from brewing techniques to recipe formulation.
Denny has kindly agreed to take part in a Q&A session in the Homebrew SE chatroom on September 25, 2013 at 1 pm PST.
If there are topics you'd like discussed please vote it up below - or add it as a new answer if not already there.
Hope to see you there on the 25th!