APIsCAN is considering using such software to increase efficiency, speed, and cost effectiveness of communications. ICQ has been purchased by AOL, but currently exists as a separately run entity. ICQ touts itself as the largest communications network in the world. AOL, America Online, also provides its own Instant Messenger. AOL provides its messenger for free as well.
Users have a unique name.
It features cute smiley faces to let you know if a friend is online. Microsoft created its messenger this year. Although it attempted to be compatible with AOL, AOL has tried to fight by making Microsofts corrections ineffective. All three systems are similar in function and appearance. ICQ currently has the largest user base and most functions available.