| http://www.w3.org/ns/prov#value | - A A Oprah Winfrey???s ???brand??? is still strong enough to give a huge boost to any book or other product she endorses, but Oprah ???has taken some notable dings lately, largely of her own making,??? Ad Age magazine observes.Oprah???s endorsement of Barack Obama for president raised her ???unfavorable??? ratings, allowing her to be overtaken by daytime talk show rival Ellen DeGeneres as the most
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