Windsor Circle, a Durham, N.C.-based automated personalization startup, has merged with Atlanta-based WhatCounts. The predictive marketing analytics company was acquired by Output Services Group last year. On Thursday, OSG announced that Windsor Circle has been combined with another OSG firm, WhatCounts, and the two will operate under the name WhatCounts, which previously was an enterprise email marketing platform. Windsor Circle CEO Matt Williamson will move to a COO role, according to...