Liba Wenig Rubenstein works at the intersection of mass and social media, cause marketing, civic innovation, sustainability, public policy, and digital activism. At Tumblr she leads partnerships, programming, and outreach for social impact and policy, spearheading major programs that have, among other things, changed national policy (net neutrality), won Webby awards (Post It Forward campaign promoting mental & emotional health), registered record numbers of young voters (National Voter Registration Day), and brought young people’s concerns about college access & affordability, LGBT rights, and gun control directly to President Obama.

Liba ran environmental sustainability at the old News Corporation, including a strategy to achieve carbon neutrality across the organization’s global operations of 100 companies on five continents. Before that, she founded Myspace’s Impact Channel for social and civic engagement and managed its Public Affairs team, launching first-of-their-kind initiatives around climate change, Darfur, social fundraising, and the 2008 US Presidential election.

She has served as a member of the World Economic Forum’s Global Agenda Council on Sustainable Consumption, board chair of the civic engagement organization The Bus Federation, mentor at startup accelerator Launchpad LA, and advisor to non-profits Vote.org, Why Tuesday? and Invisible Children. Born/bred in Brooklyn, and a graduate of Yale University, Liba resides with her family in in Los Angeles.