Thanks today to my former boss Michael Cunningham, who is now publications manager at the University of Chicago Press Journals Division. He alerted me to the existence of the Chicago Book Clinic, a professional organization founded in 1936 to "encourage excellence in publishing by providing a platform for educational, social, and professional interaction of their members." Those members include professionals in media and book publishing, printing, editorial, design, and all business aspects of the industry.
That's all well and good. But what you're probably most interested in is their Jobline. Although it's not super-active (maybe just a few posts a month), reading the older postings gives a really good picture of the companies in the Chicago area, their jobs, and their hiring requirements.
The CBC's big event for the year is coming up in just a few weeks. The 56th Book and Media Show is an awards ceremony, exhibit, and dinner celebrating the outstanding quality of publishing in the central U.S. and Canada. It's November 8 at the Chicago City Centre Hotel.