Fandom - The entertainment site where fans come first.
Lunyr - A decentralized crowdsourced encyclopedia.
Miraheze - Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains...
Curius - Save links and highlights to a beautiful personal page
Wikiful - Wikiful is an online platform that makes it easy to build and share a wiki.
Tealfeed - A knowledge sharing platform to empower creators