ICQ was a cross-platform instant messaging and VoIP client founded in June 1996 by Yair Goldfinger, Sefi Vigiser, Amnon Amir, Arik Vardi, and Arik's father, Yossi Vardi. The name ICQ derives from the English phrase "I Seek You". From Wikipedia
The pioneering instant messaging service will cease operations on June 26, marking the end of an era for early internet communication.