Yahoo Instant Messenger
Instantly communicate with all your online friends
...or whatever unfortunate soul you find online....

The old version of this archive was the largest of my messenger based Idiot Archives. I will be attempting to integrate this archive, somehow, with the new archive. I'm not sure if I'm going to go ahead and just cheat and do them as posts under the Idiot Archive-YIM category, or if I'm really going to try actually linking to all of them here. That could get scary.