Janet Meiners Thaeler is highlighting specific examples of how businesses are using Foursquare: Pennsylvania lists over 100 tips and responses about places of interest in the state. They can be found by people on Foursquare and on their web site on Foursquare – www.foursquare.com/VisitPA. Their web site also has a Foursquare section. via Foursquare for […]