58. The system for building a user profile of claim 52 , further comprising: a computing device configured to collect a number of user profiles to build a group of related users based upon the user profiles; and a computing device configured to build an audience profile based upon the group of related users.
58. The system for building a user profile of claim 52 , further comprising: a computing device configured to collect a number of user profiles to build a group of related users based upon the user profiles; and a computing device configured to build an audience profile based upon the group of related users. 60. The system for building a user profile of claim 58 , further comprising: a computing device configured to mine user data from at least one of a Web page, a uniform resource locator, a natural language document, a network address, an Internet Protocol address, and a database; a computing device configured to combine the mined user data with the collected user profiles; and a computing device configured to create a user mart of the combined mined user data and the collected user profiles to tie domains together and track user activity.