Instant
messaging (IM) is closely related to chat communication. With the help
of a little programme, an instant messenger, it is possible to
communicate with others, send short messages or exchange files in
real-time.
As already mentioned (see chapter IV.c. "Discussion forums"),
the major function of this application is presence awareness. A
self-created buddy list (selected users with whom one wants to or
must have contact regularly) stores addresses and announces when others
are at their workplace and available via Internet. Instant messaging is
ideally suited for short, quickly answerable requests for which one
would not normally pick up the telephone or write an e-mail. Presence
awareness of instant messaging fosters direct exchange between persons
at different locations and thus creates an atmosphere of co-operation
even across bigger distances.
Some IM systems (e.g. ICQ) can be used freely via Internet. Others are
integrated into, oftentimes, bigger collaboration solutions for
internal use.