Uyi Abraham came to America with only $100 and now is founder of Vonza, an all-in-one software for creators to sell online. In the digital age, communities are the backbone of successful businesses.

There's an embarrassment of riches when looking to set up an online community these days. Christopher Penn gave a super helpful presentation on private social media communities at B2B Forum last fall.

If yours is a business keen on community-building, know this: There must be real value present — and it's a two-way street. A key trend for today’s businesses is building communities around their ...