Spaces are quickly filling for the “Advocacy Journalism in the Digital Age” conference March 1 at the Newseum. The Ford Foundation and the American University School of Communication are gathering experts in social activism, public policy and journalism to help define the opportunities and challenges created by new digital technologies. Panelists include Clark Hoyt of Bloomberg News, NPR Ombudsman Alicia Shepard, and Nick Clooney, director of “Journey to Darfur,” tracing his trek to the war-torn country with his son, actor George Clooney. RSVP here.