Do you really believe that? Over 1-billion people use Facebook every single day. You're fooling yourself if you believe your clients, customers and prospective leads aren't using it.
Through orgnic and paid use of social media, we can target audiences like never before. People put their entire life on Facebook. Job title, geography, employer, education, hobbies, interests...it's all on Facebook. These demographics can be specifically targeted through advertisements and exploited. The best part is, you are able to advertise while your prospective customer has their guard down and is in a relaxed state.