Media blogger Michael Calderone has left Politico and is heading to work for Yahoo News’ developing network of news blogs. According to the Huffington Post, he’ll leave the political site in a few weeks to work with Yahoo editor Andrew Golis (Brett Michael “Cajun Boy” Dykes has already joined Golis on the Yahoo team). As HuffPo points out, Calderone has been included in both Keith Olbermann’s “Worst Persons in the World” list and on Bill O’Reilly’s “Pinheads” list. Which means he’s got to be doing something right. [HuffPo]