Mark D. Roberts has started a new series on the mission of God in the world, and how we can be involved in it. I have enjoyed and appreciated several of his prior series (DaVinci Code, Can We Trust the Gospels, etc), so I'm looking forward to this one.
I like his concept of laying out the broad biblical context for mission--it is something I've also picked up in N.T. Wright's The Last Word. In this new book Wright placed today's church in Act V of a drama through which God uses His Word to effect His will.
To check out Roberts' series, click on The Mission of God and the Missional Church.