06/19/2010 05:12 am ET Updated May 25, 2011

Jim DeRogatis Leaves The Sun-Times To Blog For Vocalo, Teach At Columbia College

Jim DeRogatis, co-host of Chicago Public Radio's nationally syndicated "Sound Opinions" and one of America's premier authorities on everything that rocks, resigned Monday as pop music critic at the Sun-Times to join the faculty of Columbia College Chicago and become a blogger for

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