Digital marketing services company Responsys has created an infographic that explores how marketing has evolved since the days of Mad Men. According to the graphic, the first electronic message was sent in 1971, an early predecessor to email. Simon Robinson, senior director of marketing and alliances for EMEA at Responsys, told The Drum that as technologies have evolved so has marketing, pointing out that, "new school marketers are succeeding by using digital technologies to develop lasting, one-on-one relationships with their customers."