PHILADELPHIA -- In a presentation at the University of Pennsylvania's Leonard Davis Institute of Health Economics, Boston University health economist Austin Frakt explains how blogging and tweeting have become important daily tools for his academic research and publishing activites. Frakt, PhD, is an assistant professor of both Health Policy at the BU School of Public Health and Psychiatry at the BU School of Medicine. He launched the "Incidental Economist" blog in 2009 and it has since evolved into one of the most widely read online publications of the health economics research field.