These are the most frequently used words in this book.
2001
2002
2003
2004
access
activity
application
between
business
call
case
change
communication
computer
contact
content
context
costs
data
development
device
different
eds
even
example
first
fixed
groups
home
however
industry
information
internet
life
location
may
means
media
messages
messaging
might
mobile
model
needs
network
new
number
often
operators
others
own
package
part
particular
pda
people
personal
phone
picture
place
pp
practices
press
private
process
provide
public
radio
rather
relationships
research
scenarios
service
sms
social
society
space
standards
studies
system
talkers
technical
technology
teenagers
telephone
telephony
text
texters
texting
time
tool
two
university
use
used
users
ways
wireless
work
world