The vast majority of small businesses fail, in my view, to properly exploit the power of social media to promote their business and brand.
The simplest, most effective way is to use video. Video can be shared on most social media sites in one way or another.
And you can bang out a new video, containing quality content for the people you seek to serve, in 5 minutes.
If you batch your content, you could make 10 videos in only 1 hour, provided you knew what you wanted to say and what topics to touch upon.
On the one hand it frustrates me to observe this opportunity being ignored. On the other hand, I hope it continues.
p.s. You may be interested in my book on this topic.