When I began at Houston Radar, the only social media presence the company had was what was necessary for their efforts — YouTube to add video to their web site, LinkedIn to post job openings, and Google+ by default of their email addresses.
In the small amount of time I was able to allocate to social media, I created profiles on Facebook, Instagram and Twitter, and updated the LinkedIn and Google+ pages. Houston Radar is in the Intelligent Transportation Systems industry, an industry that has a small presence in social media, but is constantly growing.
Most of the posting efforts were focused on Twitter, where the industry had the strongest presence. Facebook was mainly used for updates, and Instagram for interesting product photos.