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.

VK

A Russian social media and social networking service that allows users to communicate, share content, and join online communities.

Meetup

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

Academia

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

WeChat

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

Goodreads

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

Pixelfed

A decentralized social network service for photo sharing powered by Pixelfed open-source software.

Stack Overflow

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

Strava

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

Google Groups

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

Flipboard

A social news aggregator and content discovery platform.

Nostr

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

Beehiiv

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

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.

Scribd

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

Product Hunt

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

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.

Keybase

A key directory, secure messaging and file sharing platform.

Link in Bio

A link tree tool that provides users with a mini web page to share links to their social profiles and other important resources.

LibraryThing

A social cataloging and social networking site for book lovers.

Steam Community

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

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.

Diaspora

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

OK.ru

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