Mastodon says 230,000 people joined its decentralized social network in the last week and it now has 655,000 active users (Sarah Perez/TechCrunch)

Sarah Perez / TechCrunch:
Tumblr will add support for ActivityPub, the open and decentralized social networking protocol powering Mastodon, Instagram-like Pixelfed, PeerTube, and others  —  Tumblr will add support for ActivityPub, the open, decentralized social networking protocol that’s today powering social networking software …

Taylor Hatmaker / TechCrunch:
Twitter suspends the account of its rival Mastodon, and many links to some Mastodon servers no longer work on Twitter, which flags them as “potentially harmful”  —  A day after Twitter crafted a new policy to explain its decision to ban an account that tracks Elon Musk’s private jet, the fallout continues.

Emma Roth / The Verge:
Twitter will stop users from promoting their presence on rival services, including Facebook, Mastodon, and Nostr, and will remove tweets and accounts that do so  —  Twitter will no longer allow users to promote their presence on certain social platforms, including Facebook, Instagram, Mastodon, Truth Social, Tribel, Nostr, and Post.

Emma Roth / The Verge:
Twitter will stop users from promoting their presence on rival services, including Facebook, Mastodon, and Nostr, and will remove tweets and accounts that do so  —  Twitter will no longer allow users to promote their presence on certain social platforms, including Facebook, Instagram, Mastodon, Truth Social, Tribel, Nostr, and Post.

Amanda Hoover / Wired:
Some Twitter users, concerned about Elon Musk’s ownership, are moving to alternative platforms, including Mastodon, which has seen sign-ups surge, and Discord  —  Discord, Mastodon and other services are bustling as Twitter fans make backup plans for their online social lives.

Brian Fung / CNN:
Twitter sparked an international outcry by suspending journalists, and some legal experts say it could face regulatory scrutiny for blocking links to Mastodon  —  Elon Musk’s Twitter sparked an international outcry on Thursday by suspending a number of journalists at major news organizations who cover him.