IM exploitable vulnerabilities .. any pointers?

[nikun <nikunh () gmail com>]

PS: sorry for sending it to multiple lists, I want all the information I can collect.

Hi Guyz,
I am compiling a research paper for exploitable vulnerabilities with
instant messengers (not website, only IM ... client side) like yahoo,
hotmail, gmail, LCS, sametime, jabber and stuff like that. Does anybody
have some good references, mailing lists, urls or papers regarding them. Is anybody
working actively in this field? 

This paper is an episode from a series of papers which talk about
alternative entry points for hackers and their counter measures. ummm.. Something like OOB
access :-)

Thankyou,
Nikun