Following up with my blog entry on "The Great Commission" the following 7min 45sec video is an introduction to The Gospel Coalition. So far this coaliton is made up of a diverse group of pastors who intend to proclaim the "centrality" of the Gospel message. In this introductory video you will see John Piper, Tim Keller, Phil Ryken, Mark Dever, D.A. Carson, Thabiti Anyabwile and others. They have come together in an effort to encourage each other in preserving the past, rejoicing in the grace of God, helping each other in their visons, direction and leadership and for clarifying, celebrating and preserving the gospel as the "power of God unto salvation".
Browse the website & watch some of the other videos. I personally think this is a response to the "emerging church movement", although this term or this movement is not mentioned in any of the resources I have perused.