Dan Ratner Dan Ratner is an entrepreneur, technologist, and writer. He’s co-founder and CEO of Public Good, the leader in connecting the news with actions people can take to make a difference in the world. Dan loves explaining technical topics to nontechnical audiences and is the co-author two books on nanotechnology, a white paper on the importance of social causes to brands, and is flying solo on an upcoming novel about Marco Polo. Dan is also a board member of Cure Violence Global, America’s #1 anti-violence NGO, and Open Books. Previously, he was the Director of Technology at Obama for America 2012 and CTO of Sittercity, America’s first and largest service dedicated to finding quality care online. He lives in Chicago with his incredible wife Genevieve Thiers and amazing twin sons Leo and Ari.