The recession has prompted companies to create just-in-time labor forces that can be turned on and off like a spigot. Tammy DePew Smith is an example, working from her Ormond Beach, Fla., home as a LiveOps call center worker. She's paid 25 cents a minute -- only for the time she's on customer calls -- and has no health insurance, no retirement benefits, no sick days, no vacation, no severance, and no access to unemployment insurance. And she's grateful. "LiveOps was a lifesaver for me," she said.
