A lot of sites are primarily driven by a single author but would seem to be disqualified by your criterion. There are very few popular full time single author

A lot of sites are primarily driven by a single author but would seem to be disqualified by your criterion. There are very few popular full time single author tech blogs that I can think of offhand... http://www.google.com/insights/search/#q=John%20Gruber%2CRobert%20Scoble%2CPaul%20Thurrott%2CDave%20Winer&date=today%2012-m&cmpt=q http://www.google.com/insights/search/#q=John%20Gruber%2CRob...