Gilberto Gonzalez has a good reminder of the limits of servant evangelism and the continuing importance of preaching (or at least the declaration of the Gospel in human words, which would seem to me to be pretty close to a definition of preaching.) Find his article here.
Why is it that we in the church can never find balance? We focus on evangelism (1970s-1980s), but turn serving others over the “the liberals”. Then we swing the pendulum over to serving others (biblical concept), but denigrate the preached Word.