Over the last couple of weeks I've been enjoying working out with Jerram Barrs audio from his two classes on Francis Schaeffer (Early Years & Later Years) at Covenant Seminary. Specifically, I've been listening by streaming through the Covenant Seminary Worldwide Classroom app on my Android phone.
I've thought for several years that one of the best things that could happen in American churches is that we would take a more L'Abri-like approach to our mission. You can read the Schaeffer's ministry at L'Abri in The Tapestry (out of print, but I just picked one up used but in perfect condition for $25) and L'Abri. I think churches like Soma Communities are doing this kind of thing better than most.
Whether or not you pick up the books, please go pick up these very helpful, free audio classes from Jerram Barrs are hard to beat as resources in thinking about mission, apologetics, living missionally, hospitality, etc. Download Francis Schaeffer: The Early Years and Francis Schaeffer: The Later Years now. You can get them through iTunes, or stream them over the Worldwide Classroom. While you are at it, find more great stuff from Jerram Barrs including his books The Heart of Evangelism and Learning Evangelism From Jesus.