This week’s video features David Karp, founder of Tumblr, in interview he conducted this week with Chris Dixon for the TechCrunch TV show “Founder Stories.”

Tumblr is growing at an unbelievable pace over the last four to five months. In Karp’s words, “We are growing by a quarter billion impressions every week.” Last week, Tumblr did 1.2 billion impressions, or pageviews, and is adding 250 million every week.

In the interview Karp says he was surprised by that level of growth and his team is working around the clock to scale and continue to adapt to it. What I found interesting was that Karp says the growth is attributed in large part to college students, as well as strong international growth in Europe, Japan, and Brazil.

Take the time to listen to this great interview with the founder of one of the sector’s fast growing companies. To see the orginal TechCrunch article, visit “David Karp: ‘Tumblr Is Growing By A Quarter Billion Impressions Every Week’”