1. Invision Community is a flexible, integrated set of apps for building communities on the web.

  2. An open source forum software made by DuckDuckGo that is being used at https://duck.co/forum.

  3. Think Passenger builds online platforms that allow brands to connect, create and communicate with key stakeholders.

  4. Social Customer Support and Help Desk and Ticketing

  5. Shake to instantly meet community members near you

  6. Influitive helps companies increase customer lifetime value and accelerate sales with the power of their own customer advocates. Inspire your customers to stay longer, share their experiences, and attract new business.

  7. BizChat is an enterprise collaboration app that allows public & private chat, access employee...

  8. Find bloggers and social media influencers, research and review websites, measure content and the results of influencer marketing and blogger outreach.

  9. Media monitoring done right: monitor articles, predict and increase their impact.

  10. Open source, self-hosted forums

  11. ZetaBoards offers free forum hosting that serves a site for growing an online community.

  12. miniBB is a standalone, open source program for building your own Internet forum.