Pulitzer Prize-winning biographer Jon Meacham on the evolution of Abraham Lincoln's moral principles and political leadership -- and what the era of Lincoln can teach us about the state of our democracy today.
Many millions of Americans have joined online social networks. We’ll talk about their appeal and what corporate and government researchers could learn from them
- Jennifer Golbeck Research associate, Institute for Advanced computer Studies, Univerisity of Maryland, College Park, Md
- Albert-Laszlo Barabasi Professor of physics, University of Notre Dame and author of "Linked: How Everything is Connected to Everything Else"
- Kathleen Carley Professor, Computer Science, Institute for Software Research, Carnegie Mellon University
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