eXtensible Messaging and Presence Protocol ([XMPP](http://www.xmpp.org/))
(formerly known as [
Jabber](
http://www.jabber.org/)) is an open, XML-inspired
protocol for near real time, extensible instant messaging (IM) and presence
information (a.k.a. buddy lists). The protocol is built to be extensible and
other features such as Voice over IP and file transfer signaling have been
* [
XMPP Protocol](
http://www.xmpp.org/protocols/)
* [
XMPP Extensions](
http://www.xmpp.org/extensions/)
## Additional Information * [
Wikipedia](
http://en.wikipedia.org/wiki/Extensible_Messaging_and_Presence_Protocol)
* [
XMPP About](
http://www.xmpp.org/about/)