Steve Mulder is principal consultant at Molecular, an Internet consulting firm in Boston, and an internationally known speaker recognized for his work with personas. He’s a user experience expert who practices what he preaches, with over ten years of experience in user research, information architecture, interaction design, and usability. Ziv Yaar is the vice president of Internet strategy at Molecular, where he has spent over ten years helping companies develop technology and business strategies and has been at the forefront of merging the power of marketing analytics with personas.