First, there is deciding which platforms are important and current. This has obviously varied over time. Is it Facebook or is Facebook passe now, the last refuge of retirees with too much time on their hands? On the other hand, perhaps marketing to retirees would be profitable for your company.
Is your business or your niche photogenic enough for Instagram to work for you? Instagram is hot right now, but there’s little opportunity for customer engagement there. Rather than using it for direct marketing, it’s better for building excitement visually that can later be tapped in another way.