Friendica is a decentralized social network with several key features.

Here's a summary:

• Decentralization: Friendica has a decentralized architecture, meaning there is no central authority or ownership. It allows for relationships across compatible systems, creating a network of smaller sites. Users can experience wall-to-wall posts and remote comments across different network nodes.

• Privacy: Friendica provides access lists for every item and private conversation groups where communication is restricted to group members. It also features one-to-one private messaging on supported protocols. Users can set content to "expire" after a set time and download their personal data.

• Interoperability: Friendica supports protocols like ActivityPub, OStatus, and diaspora*. It also supports email contacts and communications and can import websites and blogs via RSS/Atom feeds. Plugins offer support for other services.

• Posts, Photos, and Events: Users can write and edit posts, as well as comment on and like/dislike posts from contacts. They can also share photos with selected people and organize events.

• Profiles: Friendica allows users to have public profiles and private aspects, or keep everything private.

• Extensibility: Friendica can be extended via third-party plugins and themes.

• Hosting: You can run a personal Friendica node on shared hosts, as it runs on PHP with MySQL. If you can run WordPress, you can run Friendica.