 Circle.com, the online activities of SNC, was listed separately as a tracking stock.Within two years after the IPO, Snyder had negotiated to acquire at least 14 companies In March 1997, SNC bought PromoTech Research Associates, a pharmaceutical marketing communications and direct marketing firm for an undisclosed sum.In December 1997, SNC agreed to buy Blau Marketing, a closely held direct marketing firm based in Wilton, Connecticut, for $72 million.