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Home › On-line method and apparatus for collecting demographic information about a user of a world-wide-web site and dynamically selecting questions to present to the user

On-line method and apparatus for collecting demographic information about a user of a world-wide-web site and dynamically selecting questions to present to the user

US Patent 6873965 · Granted Mar 29, 2005

Estimated economic value: $6,195,000 ⓘ

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