This was suggested by Lori Cahan-Simon to the Jewish-Music list of all fortunate digressions, who writes:
There is a marvelous online (and previously real-world) exhibit on the history of the Jewish Book Trade that I thought may interest many of our community.
The exhibit, entitled "Printer, Publisher, Peddler: The Business of the Jewish Book," was produced by the University of Pennsylvania and curated by Arthur Kiron and can be viewed at www.library.upenn.edu/exhibits/cajs/PrinterPublisherPeddler.