Tim Keller is the pastor of Redeemer Presbyterian Church in New York City, and he is one of the bright lights of evangelicalism today. We all could stand to learn a great deal from Keller about how to engage this generation with the gospel.
Recently, Keller spoke at Stanford University and at Berkeley. The video of his two presentations is available online, and I recommend them to you. Not only are the presentations very well done, but the question and answer times are instructive as well. Keller fields questions from Christian students as well as from atheists and agnostics.
(HT: Justin Taylor)