Yahoo Messenger also introduced "The Buzz" (later versions called it "Buzzing" or used the Ctrl+G command). This feature allowed a user to shake the chat window of the person they were messaging, accompanied by a vibrating sound.
Yahoo Inc., founded by Jerry Yang and David Filo, started as a simple web directory called "Jerry and David's Guide to the World Wide Web." By the late 1990s, it had grown into a portal giant, offering email, news, finance, and games. Yahoo Messenger
(launched 2004) and Twitter (launched 2006) changed the paradigm. Instead of logging into a separate IM client to talk to friends, users stayed logged into social networks, where chat was built directly into the browser. Facebook Chat (later Messenger) slowly cannibalized Yahoo’s user base. Yahoo Messenger also introduced "The Buzz" (later versions