Having a social media presence is a marketing must in today's web- and mobile-centric climate. Consider branching out from the big networks and more closely curating your social strategy by leveraging one or more of these niche channels.
Reddit: This news and content-oriented social network includes an "Ask me anything feature", where you can set up a real time Q&A session to promote knowledge about your company or industry.
See rest of the platforms in below visual, which comes courtesy of rapidadvance.