Grist: Its a Wednesday morning like any other, and Vicky Manalansan is speeding down the freeway toward Washington, D.C., in her silver minivan. Riding in her backseat are two complete strangers she picked up at a suburban commuter lot.
Smartphone-wielding techsters in San Francisco might call this ridesharing, but in the D.C. area, where carpooling has been an accepted way of life for decades, they call it slugging. Each day, an estimated 10,000 commuters in northern Virginia hitch rides this way....