XMPP is the open standard for messaging and presence
You can message me on XMPP at Xoldie@trashserver.net

If you do not have XMPP acount you can sign up here...

TrashServer.net
404.city
and
XMPP.IS

There are many XMPP clients for you to choose from. To get you started, here are some of the more popular ones:
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