Substack

A social media platform for writers and journalists that supports subscription newsletters and monetization.

WeChat

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

Steam Community

A social networking site for gamers.

Flipboard

A social news aggregator and content discovery platform.

Xing

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

Stack Overflow

A question-and-answer platform for programmers.

Google Groups

A Google service that provides discussion groups for people sharing common interests.

Zen

A Russian blogging and media publishing platform.

A Chinese microblogging website.

Stack Exchange

A multi-topic question-and-answer platform for questions about math, games, languages, cooking, biology, and more.

Meetup

A social media platform for organizing in-person activities and meeting people in your local area.

Scribd

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

Goodreads

A book-based social media platform owned by Amazon.

Last.fm

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

Viadeo

A French career-oriented social networking platform, now owned by Le Figaro.

Lemmy

A decentralized social link aggregator platform running on independent servers and powered by the open-source Lemmy software.

LibraryThing

A social cataloging and social networking site for book lovers.

Strava

A fitness tracking app and community-moderated social network for athletes.

Diaspora

A nonprofit, user-owned, distributed social network based on Diaspora open source software.

Quora

A question-and-answer platform where users can ask questions and provide answers on a wide range of topics.

Yelp

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

Hugging Face

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

QQ

A Chinese instant messaging software platform.

Plurk

A micro-blogging and social networking service.

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.