Since he took up the position of the City of Philadelphia’s chief data officer in late 2012, Mark Headd has pushed for the city to release its data on GitHub, the popular software sharing and
https://vimeo.com/31937924] Betsy Esteves was surprised to see the empty lot next to her home on North Third Street–a lot she fenced off, planted grass on, did some minor gardening in and has been struggling to
