TIme magazine has a feature article on Rob Bell and his book "Love Wins." (Or, as I like to refer to it, "HarperOne Wins.") I have stayed out of this event at my blog. It is not a topic to which I've devoted extensive study but I do have my own perspective. I haven't read the book and probably won't any time soon. From what I hear of the book, I suspect I'm probably in sympathy with Bell against narrow exlcusivism but I have the sense from people I respect that his take on hell, and his analysis of Greek and certain Scriptures, is not done well.
If you want a truly informed and civil discussion about the book, then I strongly recommend Scot McKnight's Jesus Creed blog. McKnight is a New Testament theologian at North Park University and is going chapter by chapter through the book. He just finished chapter seven. Here are links for the series so far: