ICQ launched in 1996 as one of the first widely used instant messaging programs, giving millions of early internet users a new way to chat, share files and check for incoming mail. Its short notification sounds soon became part of the everyday soundtrack of home computing in the late 1990s and early 2000s. As that era became a source of internet nostalgia, the alerts were preserved on soundboards and reused in videos, streams and memes. Today the incoming mail chime works as instant shorthand for a message arriving in a simpler, dial-up world.