ICQ was huge in Germany and I was actively using it until 2011 or so, even to communicate with my supervisor at Uni. One year ago, there were still four people

ICQ was huge in Germany and I was actively using it until 2011 or so, even to communicate with my supervisor at Uni. One year ago, there were still four people left in my list. Also, a good friend that I haven't talked to in 10 years used it to reconnect with me just last year. I wouldn't have her in my life today if ICQ shut down. It has died down almost completely by now though, thanks to whatsapp, skype and hangouts. I still log on with pidgin and there is at least one person in my list that does the same. I will never forget my ICQ number, it is burned into my brain forever.