Methods and apparatus to determine media impressions using distributed demographc information
US8954536 Патенты
Examples to determine media impressions using distributed demographic information are disclosed. Some disclosed example methods involve sending a request to an impression monitor system in response to detecting a login event at a client device. The login event is associated with an Internet based service of a first Internet domain different from a sec ond internet domain of the impression monitor system. Such disclosed example methods also involve sending a login reporting message to a database proprietor that provides the Internet-based service. The login reporting message includ ing first an
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