Amazon Fresh will open its second grocery store in Pennsylvania at the Broomall Commons Shopping Center in Delaware County. Signage was put up at the store this week, but there is no firm timetable for a grand opening. Last year, Amazon Fresh opened its first store in the state in Warrington. Plans are in place for another store in Bensalem, Bucks County, and additional stores are rumored in Philadelphia as the e-commerce giant's grocery business expands.