XMPP fully support news feed publication using XMPP Pubsub https://github.com/edhelas/atomtopubsub

Here's the result https://mov.im/community/news.movim.eu/ArsTechnica

The awesome thing is that articles stored in XMPP are actually Atom articles, so there's very little to do.

Used to be able to add friends birthdays and events you'd rsvp'd "Going" to your calendar via iCal URLs too. That was so damn useful.