Tackling a social media marketing plan is a bit like eating an elephant - you gotta do it just one bite at a time.
Great starter advice here such as:
Steer clear of divisive topics. Sharing strong opinions on sensitive topics – from politics to parenting – can alienate potential customers. Especially if they have nothing to do with your business, keep opinions away from your social media.
Share and share alike. If you want to grow your network, take the time to provide feedback to people you network with. Share comments on posts in Google+ circles, “like” things on Facebook, take the time to retweet. Oftentimes people in your community will respond in kind.
Add insight. Providing tips or insight to your network gives your business credibility. Take the time to share information that your customers may value.
Master the #hashtag.
If you haven't come to the realization social media IS your business never too late to get with the program. Get started with social media.