Photo-sharing application and service that allows users to share pictures and videos.

An online news and social networking service where users post and interact with messages, known as tweets.

American video-sharing website headquartered in San Bruno, California.

American online social media and social networking service company based in Menlo Park, California.

A business- and employment-oriented social networking service that operates via websites and mobile apps.

A social media platform for creating, sharing and discovering short music videos, think Karaoke for the digital age.

Social news aggregation, web content rating, and discussion website.

**Every idea needs a Medium.** Medium is an open platform where readers find dynamic thinking, and where expert and undiscovered voices can share their writing on any topic.