Because social media is designed primarily for networking with friends and peers, it is a delicate space to convey marketing messages. Like any social event, marketers should learn a certain kind of etiquette when entering this realm. Collin Douma, VP of social media, Proximity Canada; Paul Dunay, global managing director of services marketing for Avaya; Jeff Hilimire, managing director at Engauge Digital; and Aaron Shapiro, Partner at interactive agency HUGE, offer their Do's and Don'ts when it comes to social media marketing.