The Emergent Church is the Latest Version of Liberalism
Mark Driscoll, pastor of Mars Hill Church (http://www.marshillchurch.org/), was one of the early leaders in what has come to be known as the emerging or emergent church. However, he has clearly separated himself from the emergent crowd and people such as Brian McLaren because of theological reasons. In his newest book he says the following: "the emergent church is the latest version of liberalism. The only difference is that old liberalism accomodated modernity and the new liberalism accomodates postmodernity" [Mark Driscoll, Confessions of a Reformission Rev.: Hard Lessons from an Emerging Missional Church (Grand Rapids, MI: Zondervan, 2006), 21-22; thanks to Challies: http://www.challies.com/archives/001863.php].
For an explanation and critique of "liberalism" check out the classic by J. Gresham Machen, Christianity and Liberalism (Grand Rapids, MI: Wm. B. Eerdmans, 1923; reprinted 2001).