AOL screwed up with their AIM messenger service by accidentally deactivating user sn's. See link below.
Click Here
(http://news.com.com/AOL+shuts+out+some+AIM+users/2110-1038_3-5487842.html?part=rss&tag=5487842&subj=news.1038.20)
:o I wonder how the heck they could make a mistake like that ???