Bluesky in the context of Composability

Microblogging is a form of blogging using short posts without titles known as microposts or status updates. Microblogs "allow users to exchange small elements of content such as short sentences, individual images, or video links", which may be the major reason for their popularity. Some popular social networks such as X (Twitter), Threads, Tumblr, Mastodon, and Bluesky can be viewed as collections of microblogs.

As with traditional blogging, users post about topics ranging from the simple, such as "what I'm doing right now", to the thematic, such as "sports cars". Commercial microblogs also exist to promote websites, services, and products and to promote collaboration within an organization.

Microblogging is a form of blogging using short posts without titles known as microposts or status updates. Microblogs "allow users to exchange small elements of content such as short sentences, individual images, or video links", which may be the major reason for their popularity. Some popular social networks such as X (Twitter), Threads, Tumblr, Mastodon, Bluesky and Notes can be viewed as collections of microblogs.

As with traditional blogging, users post about topics ranging from the simple, such as "what I'm doing right now", to the thematic, such as "sports cars". Commercial microblogs also exist to promote websites, services, and products and to promote collaboration within an organization.

Jack Patrick Dorsey (born November 19, 1976) is an American businessman, co-founder of Twitter, Inc. and CEO during 2007–2008 and 2015–2021, as well as co-founder, principal executive officer and chairman of Block, Inc. (developer of the Square financial services platform). He is also the founder of Bluesky.

As of May 2025, Forbes estimated his net worth to be $3.8 billion.

Mastodon is a free and open-source software platform for decentralized social networking with microblogging features similar to X. It operates as a federated network of independently managed servers that communicate using the ActivityPub protocol, allowing users to connect across different instances within the Fediverse. Each Mastodon instance establishes its own moderation policies and content guidelines, distinguishing it from centrally controlled social media platforms.

First released in 2016 by Eugen Rochko, Mastodon has positioned itself as an alternative to mainstream social media, particularly for users seeking decentralized, community-driven spaces. The platform has experienced multiple surges in adoption, most notably following the Twitter acquisition by Elon Musk in 2022, as users sought alternatives to Twitter. It is part of a broader shift toward decentralized social networks, including Bluesky and Lemmy.