Lead generation

I need someone to help me cultivate new leads by searching the internet and compiling an Excel spreadsheet of names and email addresses. I want to work with someone with the creativity and energy to identify and compile a list of new customers. Our target customers are split amongst three main groups: (1) people looking to lose weight / diet, (2) new moms (women who have recently given birth) and (3) people belonging to gyms or fitness clubs. These are broad categories and require some creativity on you part to identify sources of customers falling into one or more of these three categories.