Stack Overflow

A question-and-answer platform for programmers where users can ask, answer, and vote on technical questions related to software development.

Last.fm

A music streaming and discovery platform with Internet radio and a community for music discussion.

Beehiiv

A newsletter platform that allows creators and brands to publish, distribute, and monetize email publications with integrated website hosting and audience management tools.

Google Groups

A web-based mailing list and discussion forum platform that enables users to communicate through shared email addresses and web-based discussions.

Goodreads

A book-based social networking platform owned by Amazon that helps readers discover, organize, and discuss books.

Steemit

A blockchain-based blogging and social media website.

Kununu

An online employer review and workplace transparency platform focused on German-speaking countries, where current and former employees rate companies and share job-related experiences.

Quora

A question-and-answer platform where users ask, answer, edit, and organize discussions across a wide range of topics through community-driven knowledge sharing.

Yelp

An American crowd-sourced review platform where users publish ratings and written feedback about local businesses.

Ravelry

A community website for knitters, crocheters, and fiber artists.

Pixiv

A Japanese online art community where artists share and discover illustrations, manga, novels, and animation-inspired artwork, with a strong focus on anime, game, and fan art culture.

Xing

A German career-oriented social networking platform focused on professional connections across industries mostly in the German-speaking market.

Letterboxd

A social cataloging service and film discovery platform that enables users to log, rate, and review films, maintain a personal film diary, create watchlists, and follow other members.

Scribd

A digital document library and reading subscription service that provides access to millions of e-books, audiobooks, magazines, and user-uploaded documents.

Zen

A Russian blogging and media publishing platform originally created by Yandex and later acquired by VK.

Steam Community

A social networking service integrated with Steam that allows players to connect, communicate, and share gaming-related content.

Truth Social

An American social media platform owned by Trump Media & Technology Group and primarily oriented toward conservative audiences.

Snapchat

A messaging and social networking app that lets users send photos and videos ("Snaps") that disappear after being viewed by default.

Flipboard

A social news aggregator and content discovery platform.

Product Hunt

A platform for discovering and sharing new technology products, including apps, tools, and services.