Flarum - Flarum is the next-generation forum software that makes online discussion fun. It's simple, fast, and free.

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Pairagraph - Clubhouse for the written word

Influitive - 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.

Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.