Google Groups

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

A Chinese microblogging and social networking platform focused on short-form posting, media sharing, livestreaming, and public discussions.

Snapchat

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

Steam

A digital distribution platform and online storefront developed by Valve Corporation for purchasing and downloading video games and software.

SlideShare

A content-sharing platform for publishing and discovering presentations, infographics, documents, and professional knowledge resources online.

Steam Community

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

WeChat

A Chinese instant messaging, social media, and mobile payment app that has evolved into a super-app combining communication, commerce, and everyday services.

Academia

A social networking platform for academics that enables users to share research papers, build professional profiles, and connect with other researchers worldwide.

Meetup

A social media platform for organizing in-person and virtual events and connecting people who share interests, hobbies, or professions.

OK.ru

A Russian social networking service with more than 300 million registered users.

Xing

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

Line

A Japanese instant messaging and social networking app often described as a super-app because it integrates services such as a digital wallet, news feed, digital comics, media streaming, and shopping.

Flipboard

A social news aggregator and content discovery platform.

Keybase

A key directory, secure messaging and file sharing platform.

Ravelry

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

Zen

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

Hugging Face

A machine learning and data science platform and community that helps users build, deploy and train machine learning models.

MeWe

A social networking service that positions itself as a privacy-first, decentralized alternative to mainstream platforms and offers an algorithm-free chronological feed without advertising or behavioral targeting.

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.

Beehiiv

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

Douban

A Chinese social networking site and media database for books, movies, music, and local events.

Product Hunt

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