METHODS AND APPARATUS TO SHARE ONLINE MEDIA IMPRESSIONS DATA

摘要

Methods and apparatus to share online media impression data are disclosed. An example method includes sending a response to a request, the response including an identification of a first cookie used by an audience measurement entity and an indication of a database proprietor, and receiving a mapping of the first cookie to a second cookie used by the database proprietor and demographic information associated with the second cookie by the database proprietor.