Sites like net-twin.de

A French-language platform for finding teammates for multiplayer games, with a searchable catalogue of over 2,000 titles

Contagious Disciple Making, a Christian ministry website on training everyday believers in disciple-making movements, with blog, courses, podcast and prison outreach

Pennswoods Classifieds is a free online classified-ads marketplace for farm equipment, firearms, tools, vehicles, pets and miscellaneous goods

Django Girls is a non-profit organization running free Python and Django programming workshops for women, with open online tutorials

NumFOCUS, a nonprofit charity supporting open source scientific software projects such as SciPy, pandas and Jupyter

Private.coffee is a non-profit association offering privacy-respecting open-source online services, such as a Matrix server and blog

A community database and progress tracker for the game IDOLM@STER Cinderella Girls Starlight Stage, with player profiles, maps and a wiki

Personal blog by Miguel Grinberg on Linux containers, Python performance, Forgejo and other software development topics

A website from the Centre for Effective Altruism explaining the philosophy and movement of using evidence to find the most effective ways to help others

A news site and catalogue of genealogy software: weekly briefs, release updates, and comparisons of software by platform, run by its author

Tab Creations, a Kansas publisher of historical and hobby games, including roleplaying games, card games and board games, with a TabBlog

Personal website of Sebastián Ramírez, a Colombian software developer, sharing ideas, guides and his open source projects like FastAPI

A community-run site sharing custom content, mods, stories and archives for life-simming games such as The Sims 1 and 2

Madrid Ruby User Group's meetup site listing monthly Ruby and Rails talks, past events, topics and members

A Scottish collective's blog on anti-racist education, covering curriculum reform, race, school policing and museums, with an about page

A free Japanese learning site with lessons, quizzes and a course, plus Patreon posts, run under the name Marshall's Site

A Minecraft server project rebuilding George R. R. Martin's Westeros block by block, with community builders, docs and blog

NumPy project website: the official home of the open source Python library for numerical computing and N-dimensional arrays

A community database and fan site for the BanG Dream! Girls Band Party game, covering characters, cards, and members' profiles

Pocoo, a former team of open source developers behind Python projects Flask, Sphinx, Jinja, Werkzeug and Pygments

Wolf3D.net is a community site for Wolfenstein 3D fans, offering news, mod downloads, game listings, guides and a Discord

Logic Masters India, a website on puzzle and Sudoku competitions, including the annual Puzzle Ramayan contest and a puzzle publishing expo

School Idol Tomodachi is a fan-run resource website for players of the LoveLive! School Idol Festival mobile game, with card, idol and map databases

Faneo is a Spanish-language social network for publishing and reading webcomics, with user comics such as La Monja Sangrienta

A social community site for Love Live! fans to share adventures, posts and wiki entries about the franchise

Leanpub, a self-publishing platform where authors sell early-access and in-progress books, including technical titles on software and AI

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