1. A multiple access presence agent for use in a presence server, said multiple access presence agent for collecting and storing presence information on a presentity from presence contributors, said multiple access presence agent further comprising: means for defining access rules for each of said presence contributors, said access rules associated with each of said presence contributors defining respective rights and privileges of said presence contributors to access said presence information of said presentity after said presence contributors have provided said presence information to said presence server; means for authenticating one of said presence contributors to determine said access rules associated with said one of said presence contributors; and means for enabling access to said presence information of said presentity by said one of said presence contributors based on said access rules associated with said one of said presence contributors; and means for enabling access further includes means for filtering said presence information of said presentity based on said access rules of said one of said presence contributors to produce filtered presence information and means for providing said filtered presence information to said one of said presence contributors; and means for enabling access further includes means for enabling said one of said presence contributors to update said presence information of said presentity based on said access rules of said one of said presence contributors; and means for enabling access further includes means for enabling said one of said presence contributors to define preference information associated with said presence information of said presentity based on said access rules of said one of said presence contributors.