This is a feasibility study for Clinical Study Applications, Inc. on
            
 the need for, and benefits of, installing and utilizing a real-time instant
            
 messaging communications program for use between CSA's offices in Arizona
            
 and Wisconsin.  The paper will look at the technology involved in computer
            
 based instance messaging software, (IM), the various instant messaging
            
 packages available, and what can be the advantages for companies whose
            
 employees use instant messaging to communicate between offices or while on
            
 the road. This study will also address concerns such as the security issues
            
 and potential abuse of instant messaging, and how these concerns can be
            
       Instant messaging was once the domain of teenagers who had found the
            
 high-tech equivalent to passing notes in class.  They used the Internet and
            
 on-line services to chat from their computers.  Nevertheless, with 600
            
 million messages being sent on a daily with America Online's messaging
            
 service alone, plus the huge volume of messages being sent by other popular
            
 instant messaging services such as Yahoo, ICR, MSN Messenger and Lycos
            
 Instant Messenger, use of this service has clearly moved to the mainstream.
            
  Adults inside and outside of the office find instant messaging an easy,
            
 convenient way to communicate with friends, family and colleagues with more
            
 immediacy than e-mail and without the expense of long-distance cell and
            
       In addition there has been rapid growth in what is called short
            
 message service, (SMS), on mobile phones.  This means that the same types
            
 of short "instant" messages that are being sent over the Internet are now
            
 being sent to and/or between mobile devices, most commonly phones.
            
       According to Uday Shukla, (2002), enterprise use of IM is growing at
            
 approximately 20 percent annually, and is expected to be in use by 70
            
 percent of all companies by the end of 2002.  By 2005, the use of instance
            
 messaging ...