Social networks are the easiest way of finding out who a person is and what they like to do just by looking at who they friend on sites like FaceBook and Twitter. Newspaper articles are very helpful, there are news sites that will post obituaries going as far back as nineteen eighty seven. Those simple little obituaries will tell you who the entire family members are and than the rest is gold from there.
Of course the search did not give me the actual email address of the business owner but what it did give was a contact email address that was affiliated. The biggest common thing that companies are notorious of is using the same consistency in an email address. So an example would be, if the company always uses the first letter of their first name and their full last name before the @ than that is how it is done with almost every employee of that business, i.e. firstname.lastname@example.org. Of course having a impeccable memory and the ability to search the mind for previous conversations and incidents is very helpful as well.