Shoppers who land on retail sites through Facebook or Twitter are less likely to make purchases. Their conversion rates average 1.2 percent and 0.5 percent, respectively. Per average order, however, they spend more than those who come…

By Kristina Lakes I am the mother you shun in Wal-Mart. Your disapproving eyes flit from my unbrushed hair to focus upon my four-year-old son, who is dressed in a long-sleeved, fatigue shirt and tight, black-wool leggings, even though it’s…