Unfortunately Rob Bell has been a heretic for some time. His Grand Rapids church has led many astray, through I rather believe most of those who attended his church wanted as such. Most of them were looking for a reason to reject the Dutch Reformed faith, which is relatively strong in the area.
Rob Bell is the subject of conversation in many of the radio programs from Olive Tree Ministries, with Jan Markell.
This subject, of the Emergent Church, Rob Bell (and others) along with post-modernism is frequently discussed — along with a number of other topics relevant to Christianity.
I would advise others to tune into Jan Markell here ...
Olive Tree Ministries
http://www.olivetreeviews.org
There are several years worth of good and informative programs here!