It is edited by Annalee Newitz, a former policy analyst for the Electronic Frontier Foundation and contributor to Popular Science, Wired, and New Scientist. Other contributors include Geoff Manaugh (BLDGBLOG), Graeme McMillan (Newsarama), Charlie Jane Anders, Meredith Woerner, Alasdair Wilkins, Cyriaque Lamar, Tim Barribeau, Esther Inglis-Arkell, Lauren Davis, Robbie Gonzalez, Keith Veronese, George Dvorsky, and Lynn Peril. Between October 2010 and January 2012 io9 hosted the Geek's Guide to the Galaxy podcast, produced by John Joseph Adams and David Barr Kirtley.