The RFC Editor has released RFC 4417 (Informational) on “Report of the 2004 IAB Messaging Workshop.”
This document reports the outcome of a workshop held by the Internet
Architecture Board (IAB) on the future of Internet messaging. The
workshop was held on 6 and 7 October 2004 in Burlingame, CA, USA.
The goal of the workshop was to examine the current state of
different messaging technologies on the Internet (including, but not
limited to, electronic mail, instant messaging, and voice messaging),
to look at their commonalities and differences, and to find
engineering, research, and architectural topics on which future work
could be done. This report summarizes the discussions and
conclusions of the workshop and of the IAB.
http://www.ietf.org/rfc/rfc4417.txt