Linked from
The 32 pages that link to Penny press, each with the reason it gives.
Mass mediaBroader topic: Its business model brought news to audiences beyond wealthy subscribers.
NewspaperBroader topic: It helped turn newspapers into affordable products for ordinary readers.
Mass communicationBroader topic: Cheap newspapers broadened the audience for commercial news.
Old mediaBroader topic: Its low price expanded the newspaper audience beyond elite subscribers.