There's a list of mostly Bucks and Montco stores here:http://www.tightlyknit.org/LYSs.html
I'm pretty sure some of them are in South Philly.
As for places to hang out- my sister lives there, and she has all the cool info- I'll be talking to her tomorrow, if there's anything in particular you're interested in food and bar wise. (Coffee hasn't hit my brain yet, so the names of the places she's taken me aren't coming up- not that remember them anything but fuzzily in the first place! Ah, South Philly, I love thee and thy bars...)