ADVANCE FOR USE TUESDAY, FEB. 26, 2013 AND THEREAFTER - In this Thursday, Feb. 7, 2013 photo, Mahrinah von Schlegel, managing director of Cibola, an incubator for tech entrepreneurs tha

 

              ADVANCE FOR USE TUESDAY, FEB. 26, 2013 AND THEREAFTER - In this Thursday, Feb. 7, 2013 photo, Mahrinah von Schlegel, managing director of Cibola, an incubator for tech entrepreneurs tha
ADVANCE FOR USE TUESDAY, FEB. 26, 2013 AND THEREAFTER - In this Thursday, Feb. 7, 2013 photo, Mahrinah von Schlegel, managing director of Cibola, an incubator for tech entrepreneurs that will open this spring, checks a social networking site at her office in Chicago, with her cell phone nearby. Von Schlegel, 30, says the many modes of communication make it difficult - if not impossible - to respond to everyone. (AP Photo/Martha Irvine)