Mary Ellen Slayter is CEO of Rep Cap. Before creating her own content marketing firm, she served as director of content development and a senior general business and finance editor at SmartBrief, a leading publisher of e-mail newsletters. Before joining SmartBrief, she spent 8 years at The Washington Post, where she authored the Career Track column and worked as an editor in the business news department. You can find Mary Ellen on Twitter @MESlayter.