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Michael Mann has a new  book which is receiving rave reviews from the warming camp,
while the realists are noting a number of flaws & misrepresentations:

If you still believe that the ClimateGate emails don't cast a lot of doubt on Michael Mann and his work, check these out

WSJ:
"The Hockey Stick and the Climate Wars" is the story of both Mr. Mann and his graph. But rather than a chronicle of research and discovery, it's a score-settling with anyone who has ever doubted his integrity or work: free-market think tanks, industrialists, "scientists for hire," "the corruptive influence of industry," the "uninformed" media and public. So, a long list.  http://online.wsj.com/article/SB10001424052702304450004577279163950476028.html?mod=googlenews_wsj

Climate Audit:
Dr. Mann’s discussion of my comment is the first published feedback to it by any of Thompson’s associates, and hence I am very grateful for the attention he has drawn to it. However, I beg to disagree with Mann’s appraisal of it.
http://climateaudit.org/2012/03/04/mann-on-irreproducible-results-in-thompson-pnas-2006/

Brandon Shollenberger (Comment #89786) February 15th, 2012 at 2:59 pm
it shows a disturbing trend. Ideas which are possible, but by no means known to be true, are stated as fact. If this is remotely representative of the book’s accuracy, there is no way the people giving it glowing reviews read it with an open mind
...
At this point, I’ve seen Mann use the word “denier” something like half a dozen times. It seems strange to use it while claiming “scientific cleansing” is a reference to Nazi Germany. I know there is disagreement over whether or not “denier” is a Holocaust reference, but it seems to me there is a far stronger case for it than for “scientific cleansing.” At least with “denier,” the original user of it explicitly stated they were making a Holocaust reference.
http://rankexploits.com/musings/2012/reduce-image-scraping-to-prevent-blog-crashing-and-thwarth-copyright-trolls/#comment-89786

From a more detailed review by Brandon Shollenberger:
Michael Mann recently published a book named The Hockey Stick and the Climate Wars. It was
generally well-received, quickly garnering many positive reviews. Even Henry Waxman, a sitting
Congressman, and Bill Nye the Science Guy praised the book. Unfortunately, while many people liked
the message of the book, it seems few read it carefully. The book contains many mistakes,
contradictions, fabrications, nonsensical statements and even a libelous claim based on an obvious
misrepresentation.
The last of those is obviously the most serious. Michael Mann began receiving a large amount
of attention after he published two papers in the late nineties, creating his "hockey stick." A few years
later, his work was criticized by the authors Stephen McIntyre and Ross McKitrick, leading to a
controversy that would rage on for years. Eventually, two reports were commissioned by the United
States Congress to study the controversy. The lead author of one of those reports was Edward
Wegman, a distinguished statistician from George Mason University.
http://www.bishop-hill.net/storage/Manns_Book_Review.pdf