Here is another one. Drudge has a link to Paul Krugman's regular column:
Hardly a right wing link.
To be fair, I scanned the HuffPo site, and I did find two links to right leaning columnists...one for Peggy Noonan, and one for George Will.
Drudge, from a glance, appears to have more links to left leaning blogs, than HuffPo as to right leaning ones. But that is a casual observation based on names I recognize, and is not a scientific sample.