Goodreads

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

ResearchGate

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

Xing

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

Google Groups

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

Viber

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

Steam Community

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

Ravelry

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

Pixelfed

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

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.

Last.fm

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

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.

Letterboxd

A social media platform for film lovers.

LibraryThing

A social cataloging and social networking site for book lovers.

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.

Keybase

A key directory, secure messaging and file sharing platform.

Diaspora

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

Meetup

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

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.

Micro.blog

A microblogging and social networking service.

Hugging Face

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

Gitter

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

Scribd

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