Data mining -- user contacts

We're looking for someone that can mine contacts (email address, phone number, website) of users given some information about them. We need: -Someone smart, who can use different media to acquire information -Some who can work fast and efficient -Someone who is sufficiently detail-orientated Imagine you have nickname and location of a user and you need to find his email address. I expect someone to do at least 20 users within an hour. At least 20 hours per week required (the more the better). Successful freelancer can expect to be rehired, as we are willing to more projects like this in the future.