BBdirectory.com - Pennsylvania: Bed and breakfast inns in Pennsylvania with photos and reservation information.
BedandBreakfast.com - Pennsylvania: Directory of Pennsylvania bed and breakfast inns with descriptions, photos, and reviews.
International Bed and Breakfast Pages: Pennsylvania: Listings with photos, basic information, and a links to individual sites.
Pennsylvania Farm Vacation Association: Information on lodging and accommodations at member farms.
Pennsylvania Visitors Network: Database of over 350 bed and breakfasts. Searchable by town, county or region.