We're currently hosting our discussions at Café Walnut, not too far from our summer meeting spot in Washington Square Park. The cafe is near the corner of 7th & Walnut in Olde City. The cafe's entrance is below street level down some stairs, which can be confusing if it's your first time. Our group meets in the large room upstairs.
Since we're using the cafe's space, they ask that each person attending the meetup at least purchase a drink or snack. Please don't bring any food or drinks from outside. If you're hungry enough to eat a meal, they have more substantial fare such as salads, soups & sandwiches which are pretty good and their prices are reasonable.
The cafe is fairly easy to get to if you're using public transit. With SEPTA, take the Market-Frankford Line & get off at the 5th Street Station (corner of 5th & Market), and walk 2 blocks south on 5th and then turn right on Walnut Street and walk 2 blocks west. With PATCO, just get off at the 9th-10th & Locust stop and walk 3 blocks east & 1 block north. For those who are driving, parking in the neighborhood can be tough to find. If you can't find a spot on the street, I'd suggest parking in the Washington Square parking deck at 249 S 6th Street which is just a half block away.