When America Online made its popular Instant Messenger
software freely available, and bundled it with Netscape
Communicator, it ensured that thousands of people would
be holding conversations over the Internet every second
of every day.
Instant messaging (and there are other, similar programs,
freely available or distributed by other service providers)
is different from most other forms of even Internet-based
communication, not only for its speed of response but for
its informality as well.
To use America Online Instant Messenger (AIM), first
connect to the Internet via whatever service you use.
Then start up the AIM software, enter your screen name
and password, and watch the following screen:

When you've logged on successfully, you'll see your
"buddy list," which tells you which other AOL or AIM
users you know are online at that moment.
(NOTE: you have to create a buddy
list yourself.)
You have the option of dividing your buddy list into
multiple folders, helping you to organize your "buddies"
in whatever way is convenient.
The buddy list window is active as long as you are
logged into AIM. Because of the informality of the
medium, and the obscurity of AOL screen names, people
who just happen to drop by may have no idea what you
are using AIM for -- some workplaces find using AIM
inappropriate. And you can't hide its use, either --
even if you minimize screens, a distinctive icon in
the lower right corner of the screen indicates AIM is
still there. And instant messages that come in for
you will appear on the screen, or blink at the bottom
of the screen if you attempt to place other windows
over them.
If you really must use AIM in the
workplace, you can take some steps to make it easier
for your co-workers and yourself:
- inhibit people not on your buddy list from reaching
you during the work day;
- create and invoke an "away message" that says you're
at work and how you can be reached;
- create a user profile that shows you're professional
-- and use AIM for fun only after work, perhaps even
with a different screen name than the one used at work.
- remember that disruption is a powerful force in slowing
down work! When IMs come in, even if they can't be
interpreted as being anything but work-related, they
cause a momentary lull in any other work, which can
snowball. If you're interested in getting something
done, it's a good idea not to log on to instant
messaging at all. Even if nobody you know is online,
someone could show up and surprise you. Even if you
use the "away message," you will find yourself at times
unable to resist the urge to see who's there and what
they've said.

The IM screen allows you to carry on a one-on-one
conversation with another AIM user. As you can see, it
offers you a rich set of options for text style, as well
as the ability to create active links for your
conversation partner to click on. Links you create
follow standard HTML formats.
Note the extreme informality used in the conversation.
The message moves through the Internet faster than you
can type. Users are forced to cut corners in ways they
might never apply in other forms of writing.
- Because it goes on in real-time, nobody is very careful
about spelling.
- I personally seldom use capital letters and often
will ignore punctuation to allow me to respond
to messages faster.
- I also find that brief sentences are easier to
follow than paragraphs.
- It is very difficult to talk about more than one
subject at a time, because a new subject will come up
before you can respond to the first one.
There are also standard rules of etiquette followed in
this environment:
- If you don't know someone, don't contact them unless
specifically invited. Some users have profiles inviting
new conversations; others only feel comfortable talking
with those they know.
- If someone can't talk, or doesn't share your interests,
don't continue the conversation. That can cause problems.
Likewise, don't take a conversation in directions that
those you talk to are uncomfortable with.
- Be careful with fonts, sizes and colors -- the large
selection enables you to be hard on the eyes. Teenagers
have been known recently to use aLtErNaTiNg CaPs AnD sMaLl
LeTtErS. This is an abomination. :-)
References
http://www.imunified.org/
A move is underfoot to create a standard of interoperability
between instant messaging providers. AOL, the largest such
provider, claims as of late 2000 not to need this, but other
providers believe AOL wants its Instant Messenger to stay
proprietary to keep its own customers (and potential customers)
in the fold.