Viber

A free, cross-platform instant messaging and calling application owned by Rakuten.

Stack Overflow

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

Xing

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

Meetup

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

Yelp

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

Academia

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

Google Groups

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

Strava

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

Truth Social

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

Goodreads

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

OK.ru

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

WeChat

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

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.

Keybase

A key directory, secure messaging and file sharing platform.

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.

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

Hugging Face

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

Nostr

An open protocol that enables global, decentralized, and censorship-resistant social media.

QQ

A Chinese instant messaging software platform.

Beehiiv

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

Gitter

An open-source chat and networking platform for software developers based on the Matrix protocol.

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.

Scribd

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

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.

Snapchat

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