A few months ago, I was blessed to hear a few sermons preached by a man named Paul Washer, who is the director of a ministry called HeartCry Missionary Society.
You can check out their ministry website for yourself by visiting: www.heartcrymissionary.com.
But I personally want to recommend their video page, where you can see 5-15 minute clips of sermons on various topics. Paul is not your average preacher, and his messages are likely to challenge you A LOT! But it is highly recommended.
Here is the link to their video page: http://www.heartcrymissionary.com/resources/video
