In a very long post explaining why he is leaving Scienceblogs in the wake of the network selling a sponsored blog to Pepsi, Bora Zivkovic considers the blogosphere options for science writers and immediately rejects the Huffington Post:
Blogging on Huffington Post is an instant loss of credibility - a day of a Pepsi blog is nothing compared to years of pseudoscience, medical quackery, Creationism and Deepak Chopra's posts there. Nobody in their right mind would want to be associated with such a cesspit of anti-science.
Well! His exit from Scienceblogs is "a devastating loss for that site, though not unexpected," says NYU's Jay Rosen (who, by the way, collaborated on HuffPo election coverage for 2008.)