About Make Your Move: A collaborative original series between Fast Company and Cartier featuring in-depth interviews with today's most innovative entrepreneu...
David Karp: Why I Started Tumblr | Founder Stories
David Karp at What's Next 2013
David Karp: Full talk from Wired 2012
David Karp: When It All Came Together
President Obama's Tumblr Q&A at the White House
Tumblr Founder David Karp on Gifs on Tumblr