Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!

wikiHow - wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual.

Diaspora - The online social world where you are in control.

Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.

X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.

AllAnswered - Your Team's Collective Brain All-In-One Knowledge Management System Wiki + Q&A + Workflow + AI