Google +1 was a content-focused social network platform. ...more

Playfire is a disbanded social gaming networking website targeted towards core video game players. ...more

Open Source Social Network (OSSN) is a powerful open source social network. ...more

dpadd is a social network and journal for gamers. ...more

Musteus is a social media platform. ...more

MyEpisodes.com helps to keep track of episodes of TV shows. ...more

Kliqqi is a open source content management system. ...more

Twister is a peer-to-peer microblogging software. ...more

LiveTalkie is a free VOIP platform. ...more

Meetup is an online social networking portal that facilitates offline group meetings in various localities around the world. ...more

Movim (My Open Virtual Identity Manager) is a distributed social network built on top of XMPP, a popular open standards communication protocol. ...more

Listal is a community based on listing, rating and reviewing entertainment products. ...more

Libertree is a free, libre, open-source software that lets people create their own social network. ...more

Roblox is a user-generated massively multiplayer online social gaming platform. ...more

Game Center is an app that allows users play and challenge friends when playing online multiplayer social gaming network games. ...more

Ello is a community to discover, discuss, publish, share and promote the things you are passionate about. ...more

Letterboxd is an online social networking service. ...more

Path is a social networking-enabled photo sharing and messaging service for mobile devices. ...more

PicsArt is an image editing, collage and drawing application and a social network. ...more

500px is an online community and marketplace based on photography. ...more

Known is a publishing platform that allows its users to share their stories online. ...more

Voat.co is a news aggregator and social networking service where registered community members can submit content such as text posts and direct links. ...more

LiveJournal is a Russian social networking service. ...more

Raptr is a social-networking website and instant messenger. ...more

8tracks.com is an internet radio and social networking website revolving around the concept of streaming user-curated playlists consisting of at least 8 tracks. ...more

Goodreads website allows individuals to freely search Goodreads' database of books, annotations, and reviews. ...more

Wakoopa tracks what kind of software or games you use, and lets you create your own software profile. ...more

Desura is a digital distribution platform for the Microsoft Windows, Linux and OS X platforms. ...more

Diaspora is a nonprofit, user-owned, distributed social network that is based upon the free Diaspora software. ...more

DeviantArt is the world's largest online social community for artists and art. ...more