1. A method to provide anonymous audience measurement data to an audience measurement entity, the method comprising: obtaining a demographic profile and a network usage profile; electronically sampling customer data stored in a customer database not accessible by the audience measurement entity to generate a customer sample representative of the demographic profile and the network usage profile without customer intervention, the customer sample including customer identification information; electronically processing log data obtained from a network server not accessible by the audience measurement entity using the customer identification information to determine audience measurement data associated with customers in the customer sample; and removing the customer identification information from the audience measurement data to prepare the anonymous audience measurement data for the audience measurement entity.