| A
name you choose for yourself that lets you get into
certain places on the Web. It is usually what people
know you as in chatrooms,
or the part of your email
address before the @.
In Web
marketing, a unique user is, for a specified period
of time such as a day or month, an individual that
has visited a Web site or received specific content,
such as ads, e-mail, or newsletters. For a unique
user on a Web site, unique user information consists
of, at least, the IP address associated with their
computer and a further ID such as a browser ID.
Since more than one person may use a computer, other
information, such as a user ID and password may be
required to ensure that each unique user is being
counted. Marketers and Web site owners track unique
users to determine how many people see their content
within a given period of time. The number of unique
users that are served specified content is referred
to as that content's reach.
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