Fediverse

thumb|right|This screenshot shows the "Inbox" page of an email client; users can see new emails and take actions, such as reading, deleting, saving, or responding to these messages. thumb|When a "robot" on Wikipedia makes changes to image files, the uploader receives an email about the changes made. Electronic mail (usually shortened to email; alternatively hyphenated e-mail) is a method of transmitting and receiving digital messages using electronic devices over a computer network. It was conceived in the late–20th century as the digital version of, or counterpart to, mail (hence e- + mail).

thumb|upright|The first IRC server, tolsun.oulu.fi, a Sun-3 server on display near the [[University of Oulu computer centre]]

free and open-source federated social networking project

thumb|upright=1.3|A 2004 discussion in the Usenet group comp.text.tex thumb|A diagram of Usenet servers and clients. The coloured dots on the servers represent the newsgroups they carry. Coloured arrows between servers indicate newsgroup content exchanges (news feeds). Arrows between clients and servers indicate that a user is subscribed to a certain newsgroup and reads or submits articles there.Notably, clients never connect with each other, but still have access to each other's posts even when they also never connect to the same server.

thumb|alt=5 nodes in pentagon shape with all diagonals, multicoloured similarly to a rainbow.|Proposed symbol for the Fediverse from 2018, the "fedigram"

distributed social network based on software of the same name

ActivityPub is a protocol and open standard for decentralized social networking. It provides a client-to-server (C2S) API for creating and modifying content, as well as a federated server-to-server (S2S) protocol for delivering notifications and content to other servers. ActivityPub is the defining standard of the Fediverse, a decentralised social network of various social interaction models, and content types, which consists of independently managed instances of software such as Mastodon, Pixelfed and PeerTube, among others.

Flipboard is a news aggregator and social network aggregation company based in Palo Alto, California, with offices in New York, Vancouver, and Beijing. Its software, also known as Flipboard, was first released in July 2010. It aggregates content from social media, news feeds, photo sharing sites, and other websites, presents it in magazine format, and allows users to "flip" through the articles, images, and videos being shared. Readers can also save stories into Flipboard magazines. As of March 2016 the company claims there have been 28 million magazines created by users on Flipboard. The serv

free and open source software microblogging server

Friendica (formerly Friendika, originally Mistpark) is a free and open-source software distributed social network. It forms one part of the Fediverse, an interconnected and decentralized network of independently operated servers.

GNU MediaGoblin (also shortened to MediaGoblin or GMG) is a free, decentralized Web platform (server software) for hosting and sharing many forms of digital media. It strives to provide an extensible, federated, and freedom-respectful software alternative to major media publishing services such as Flickr, DeviantArt, and YouTube.

Misskey () is an open source, federated, social networking service created in 2014 by Japanese software engineer Eiji "syuilo" Shinoda. Misskey uses the ActivityPub protocol for federation, allowing users to interact between independent Misskey instances, and other ActivityPub compatible platforms. Misskey is generally considered to be part of the Fediverse.

pump.io is an implementation of a social networking service built on a common communication protocol that can be used in a federated social network. Started by Evan Prodromou, it is a follow-up to his previous microblogging software StatusNet (later merged into GNU social) and its OStatus protocol. It is designed to be more lightweight and usable for general activity streams instead of the predecessor's focus on microblogging timelines, with its goal being to achieve "most of what people want from a social network".

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