The operative word in social media is SOCIAL. You are creating a community. A base of fans that has some affinity to your business or mission. The goal of social media is to give those people a reason to care - about you!
Social media success DEMANDS two things:
Consistency - You simply cannot post the occasional status update or random tweet. You MUST touch them on a daily basis. While not every message may resonate with everyone of your fans or followers the fact that you are there - consistently - makes your brand top-of-mind.
Content - Status updates must have some value. If they are merely random musings or, worse, spam-like offerings you will lose the attention of your existing fans and followers. And, you will have an extremely difficult time growing your community.
The good news is you have already have a wealth of content at your fingertips:
Events - what you are doing
News - about you and your industry
Services - what you can do for them
Stories - Success stories of real people who have benefited from interacting with you
Offers - Specials that are only available to your social network.
You increase your reach through your fans and followers. The more you can evangelize them with your message the larger your reach will become.
This is what SM THREE will do for you.
For less than the cost of a part time employee.