BRANDON, S.D. — In this slow-paced part of the Midwest, near the intersection of South Dakota, Minnesota and Iowa, most customers still get their grocery ads via the newspaper, TV and radio.
Even so, Brent Bosch, general manager and co-owner of Sunshine Foods, a 12-store family-owned retailer here, felt change in the wind. Over the past few years, he noticed his stores were losing touch with their No. 1 target audience — time-pressed, working moms age 25 to