Very interesting and enjoyable workshop that Colin Adams highlighted on his blog. From his blog:
Preaching from the Old Testament prophets can be hard. And as a pastor, you might feel alone. The prophets were the great preachers of their day. Yet, they faced similar challenges. And their message needs to be heard. This workshop is for pastors to get together and think carefully about how to preach from the Old Testament, focusing specifically on the prophet Zechariah.