[5] [DFN[XHTML-IM]] は、 [[Jabber]] ([[XMPP]]) で使われている [[XHTML1]]
ベースの独自仕様です。

[1]
[CITE[JEP-0071: XHTML-IM]] <http://www.jabber.org/jeps/jep-0071.html>

[2]
[CITE@en[Sam Ruby: Sending XHTML over Jabber]] ([CODE[2007-08-10 10:09:18 +09:00]] 版) <http://www.intertwingly.net/blog/2007/08/09/Sending-XHTML-over-Jabber>

[3]
[CITE@en[Sam Ruby: XHTML-IM over TLS via Erlang]] ([TIME[2007-09-01 08:48:55 +09:00]] 版) <http://www.intertwingly.net/blog/2007/08/27/XHTML-IM-over-TLS-via-Erlang>
([[名無しさん]] [WEAK[2007-09-02 04:27:32 +00:00]])

[4] [CITE[XEP-0071: XHTML-IM]]
([TIME[2014-04-09 01:56:46 +09:00]] 版)
<http://www.xmpp.org/extensions/xep-0071.html>