Hip Mama is a group for progressive women who love being moms. We're urban-minded and open-minded, but we don't all live in the city. Hip Mamas enjoy art, culture, literature, diverse music and diverse people. We want to take advantage of all that that Pittsburgh has to offer, especially out-of-the ordinary types of places and events, and share them with our offspring. We are working moms and moms who stay home (well, we try not to "stay home" too often, anyway). If this sounds like you, we'd lo …