It was WUWT. They are the ones that instigated the Surface Stations project, which tried to categorize all temperature stations that were listed as part of the USHCN. http://surfacestations.org/
Suffice to say that the NOAA's data collection is basically bunk, with the majority of temperature stations of record having errors greater than 2 degrees. Anyone who has taken a college level physics lab knows that in propagation of error your error cannot go below the instrument error, no matter how many measurements you average.
It was WUWT. They are the ones that instigated the Surface Stations project, which tried to categorize all temperature stations that were listed as part of the USHCN. http://surfacestations.org/