The ICQ messaging app is shutting down on June 26th, marking the end of a much-beloved communication application. Before there was AOL Instant Messenger, Yahoo Messenger, or Discord (which came much later), there was a free messaging app called ICQ that over 100 million users used to coordinate plans, chat about life, or communicate while playing online games. ICQ ("I seek you") launched in 1996, just a short time before AOL Instant Messenger, and was loved for its ease of use, 1-on-1 or group c...