XMPP (Jabber)

XMPP (Extensible Messaging and Presence Protocol) is a communications protocol for message-oriented middleware based on XML.
The protocol was originally named Jabber.
Jabber.org is the original IM service based on XMPP, an open standard for instant messaging.
Click here to register jabber.org
Download a xmpp client like pidgin.
Accounts/manage account/ADD <- add account on pidgin.
Pidgin support a lot of protocol you must use xmpp.
examples : hackforlulz@jabber.org
Username : hackforlulz
Domain : jabber.org
Pidgin-otr is a plugin for pidgin that allows you to have private conversations over instant messaging by providing:
- No one else can read your instant messages.
- You are assured the correspondent is who you think it is.
The messages you send do not have digital signatures that are checkable by a third party. Anyone can forge messages after a conversation to make them look like they came from you. However, during a conversation, your correspondent is assured the messages he sees are authentic and unmodified.
- If you lose control of your private keys, no previous conversation is compromised.
Add hackforlulz to your account -> hackforlulz@jabber.org

If you have a problem or you need some explanations just write under this post!