While social media has carved itself a niche in the business world, the best recipe for professionals to cook is Twitter, LinkedIn, Facebook and up-and-coming social sites that's still in the works. Savvy sales people use LinkedIn as an enhanced Rolodex. Reporters take to Twitter for scoops and exclusive interviews. Professional use of social media is bound to transform in the next five years, but here's what we know so far: those that use it have a leg up. According to a survey by MACPA.ORG, business professionals are increasingly using social media to become thought leaders and build trust (reputation).