ExplorePAHistory.com: This site is packed with dozens of stories about Pennsylvania (arranged by topic), lesson plans for teachers (organized by historical time periods), and information about historical sites to visit.
Pennsylvania Study Project: Overview of various aspects of PA history, government, landmarks, and more. Includes free printables and links to study resources.
Pennsylvania Historical & Museum Commision: Comprehensive coverage of PA history, with separate categories for people, places, events, and things. Covers background of ethnic and religious groups that are an important part of Pennsylvania’s history. Also offers a thorough Overview of Pennsylvania History (subdivided into five time periods).
History.com: Videos, photo galleries, and interactive activities related to PA history.
Pennsylvania History Timeline: A detailed chronological timeline of important events and milestones in PA history.
com: Full-color printable maps of Pennsylvania; county maps, outline maps, historical maps, and more.
List of National Historic Landmarks in Pennsylvania: Lists ninety-eight historic landmarks in Pennsylvania with thumbnail images; Philadelphia’s historic landmarks are listed separately.
State Study Notebooking Pages: 44-page set of reproducible notebooking pages, including ideas, directions, and state facts.
Pennsylvania Lapbook: Free resource with instructions, templates, and an extensive compilation of information about Pennsylvania.

Do you know of other online resources for Pennsylvania history, or other states' histories? Leave a comment below.

Online Resources for Pennsylvania History