Murphy is launching PayPerPost.com, which will automate such hookups between advertisers and bloggers and thus codify a new frontier of product placement. Advertisers pay to post details about their “opportunity,” specifying, among other things, how they want bloggers to write about, say, a new shoe, if they want photos to be included, and whether they’ll pay only for positive mentions. Bloggers who abide by the rules get paid; heavily trafficked blogs may command premium rates. —Jon Fine —Polluting the Blogosphere (BusinessWeek)