Last January, as a part of a DMin program I am involved with, I had the opportunity to interact with Dr. Daniel Akin, President of Southeastern Baptist Theological Seminary and Dr. Hershael York, a professor of preaching at The Southern Baptist Theological Seminary.
Both of them are excellent preachers and both make their share of contributions on the web. I regularly check in on both of their sites and enjoy their resources:
Dr. Daniel Akin – articles, sermons (audio, pdf, handouts), conferences, etc
Dr. Hershael York – Buck Run Baptist Church:
Sermons