Summary: NEW YORK (AdAge.com) -- Despite their lightweight moniker, mommy bloggers have become marketing business heavyweights. Now numbering in the millions, these online women have cobbled together content networks that rival some mainstream media companies. They are now a force that retailers underestimate at their own peril. In this "About Digital" report, we talk to a retail giant, an analyst, major publisher and a PR agency to better understand how various segments of the industry are adjusting to this phenomenon.
