Is XMPP &quot;less and less often used&quot;? I just started using it seriously relatively recently. It&#x27;s quite nice and there are multiple excellent open server implementations, and I&#x27;ve been thinking on ways to integrate it into some of my own projects. I don&#x27;t really follow trends in this area, so I don&#x27;t know what people are doing with it...I do know that Facebook and Google have abandoned XMPP, but that&#x27;s to be expected. They want to own their users, and they have enough power to do so, regardless of the ethics of the question.