"Buzzing" in Yahoo Messenger
This article explains how to "Buzz" your friends and contacts to get their attention.
"Buzzing" is a way to get a friend's attention in Yahoo Messenger. If you have an instant message window open, you can click the Buzz button (indicated by an exclamation point icon directly about the message entry field) or press Ctrl-G, to "Buzz" your friend. The instant message window will "wiggle" and both you and your friend will hear a buzzing sound.