It is a good idea to promote on social media being that it provides new opportunities to reach a wider audience.  Make sure things that you are posting are relevant to your industry or something original you created.  With the amount of social media sites that are around now, this is a great way to build your brand and show what you offer as a company.  An added benefit is that you don’t have to pay for any advertising as well.  It will take awhile to build a following but can be great, possibly by reaching out to influencers in your industry.