The Three Mile Island (TMI) Collection at the State Library of Pennsylvania contains federal and corporate documents, transcripts, maps, and other records pertaining to Three Mile Island Nuclear Generating Station near Harrisburg.

The Pennsylvania Gazette was a Philadelphia newspaper / periodical from 1728 to 1815 that published advertisements, classifieds, social happenings, and foreign and domestic political news in English to interested Pennsylvania citizens. Started in 1728 by Samuel Keimer, the fledging paper was sold the next year to Benjamin Franklin and Hugh Meredith, who turned the Gazette into a successful publication.

The Pennsylvania Bulletin is a weekly gazette of Commonwealth information and rulemaking.  It serves as a temporary supplement to the Pennsylvania Code, the official codification of agency rules, regulations, and other statutorily authorized documents.  It includes Executive Orders from the Governor of Pennsylvania, local and state court rules, opinions from the Attorney General, and proposed and adopted agency regulations, in addition to certain other required documents.