What a disappointing book. I was looking forward to reading this one, but it failed to make a good impression.
On the plus side, he acknowledges that God is known by faith, and that faith should be in God, not in church or other people, since those can let you down.
The first flaw in this search to find the "organic Jesus" is the inane set up of this book; even my teens found all the little blurbs, sidetracks and suggestions to post things online distracting and not well done. If indeed people are distracted by technology, this book does nothing to help with that with its format.
The second is the very surface discussion and the failure to back up most of what he said. Douglas basically comes up with a somewhat twentieth century looking Jesus based largely on the theology hacked out in the first few centuries by the church fathers, politicians and a sometimes violent and bloody fight over whose version of the trinity and theology should dominate, which often had little to do with actual scripture and a lot to do with inculcating doctrines of other religions and, at times, adding scriptures (this is known to anyone who has done careful study of this.)
He is rather fickle on what he takes (evolution, for example, despite the fact that it is based on the philosophy of materialism and much of it on the theory of uniformitarianism and that it hasn't been fully proven, and yes it's true that that theory led theologians to investigate creationism etc in a way not done for a very, very long time, which doesn't make it a bad thing or even wrong), and what he drops (the rapture only because he can only find references to it for the past couple of hundred years, even though it's known that for centuries Roman Catholics would rout out people who disagreed with them and wipe out much or all of their theology, and really without any indepth discussion of it; whether or not it's accurate has little to do with the age of the theology). As if the reformation wasn't an ongoing process and stopped shortly after Luther et al.
But basically, it's just shallow, splashy writing that doesn't give us anything to really sink our teeth into. It's sort of a homogenized theology popular in many churches, but not all, and certainly not well documented.