5. Choose a social media strategyâ€”and work it daily. Not being on Twitter and Facebook is no longer an option for serious entrepreneurs. A social media presence is no substitute for a real marketing strategy for your business. On the other hand, in 2011, no marketing strategy is complete without an on-purpose, faithfully executed social media strategy. You and your business donâ€™t need a presence on every social media platform out there, but you need to have a 2011 plan for at least two or three of thefive most important social media sites. Itâ€™s not enough to just set up profiles and accounts on these sites. You must make time each dayâ€”beginning January 3â€”to actively engage and pay attention to those in your networks. And if you have zero social media engagement, the time to start is now.