Unlike other instant messaging software or web applications, on ICQ the only permanent user info is the UIN, although it is possible to search for other users using their associated e-mail address or any other detail they have made public by updating it in their account's public profile.
In addition the user can change all of his or her personal information, including screen name and e-mail address, without having to re-register.
Rather than assess an extra charge for premium editions, we will adjust the length of your subscription, which accelerates its expiration when you receive these premium editions.
The founding company of ICQ, Mirabilis, was established in June 1996 by five Israelis: Yair Goldfinger, Sefi Vigiser, Amnon Amir, Arik Vardi, and Arik's father Yossi Vardi.
They recognized that many people were accessing the internet through non-UNIX operating systems, such as Microsoft Windows, and those users were unfamiliar with established chat technologies, e.g. The technology Mirabilis developed for ICQ was distributed free of charge.
Ownership of ICQ passed from Mirabilis to AOL in 1998, and from AOL to Mail. The ICQ client application and service were initially released in November 1996 and the client was freely available to download.
Users could register an account and would be assigned a number, like a phone number, for others to be able to contact them (users could also provide handles).