ResearchGate

A social networking platform for scientists and researchers that enables them to share publications, collaborate with peers, and engage in academic discussions online.

Steam

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

Snapchat

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

SlideShare

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

Substack

An online publishing and social platform that enables writers and journalists to create subscription-based newsletters, podcasts, and multimedia content delivered directly to subscribers.

Google Groups

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

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.

Stack Overflow

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

Yelp

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

Xiaohongshu

A Chinese social media platform focused on user-generated content where users share personal reviews, daily life experiences, and visual guides through photos and short videos.

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.

Steam Community

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

Academia

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

Strava

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

Ravelry

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

Last.fm

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

Stack Exchange

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

Viber

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

ReverbNation

A social networking site for musicians.

Lemmy

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

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.

Nostr

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

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.

Truth Social

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