[$] Federation in social networks

<p>Social networking is often approached by the free-software community with acertain amount of suspicion-rightly so, since commercial social networksalmost always generate revenue by exploiting user data in one way oranother. While attempts at a free-software approach to social networking have so far not metwidespread success, the new ActivityPub federation protocol and itsimplementation in the free-software microblogging system Mastodon are gainingpopularity and already show some of the advantages of a community-drivenapproach.