Abstract: Advertisements are provided to users for an extended period of time based on a categorization of those users into one or more audiences. A user is being offered credits in exchange for the display such advertisements, which can be utilized to purchase items of value. The advertisements are selected based on which audience a user belongs to and a user is categorized as a member of one or more audiences based on a user profile that is informed by information explicitly provided by the user, information generated by the user to which the user has granted permission and contextual information, such as location. An audience taxonomy is centrally maintained and provided to enable categorization without transmitting users' information off of their computing devices. Advertisers bid on advertisements, not by bidding on keywords, but rather by bidding on the duration for which advertisements are displayed to selected audiences.

Abstract: Methods, systems, and computer-readable media for facilitating personalization of web content is provided, while protecting the privacy of the user data utilized to personalize the user's experience. A privacy vault may collect user data including user activity data, demographic data, and user interests submitted by a user. In one embodiment, the privacy vault operates on a user client device. The privacy vault sends the user data to a community vault that collects user data from multiple users. The community vault generates segment rules that whether a user belongs to a user segment, which expresses a user's interest. The segment rules are then communicated back to the privacy vault, which assigns one or more user segments to the user based on the user data available to the privacy vault and the segment rules. The privacy vault may communicate user segments to one or more content providers that supply personalized content that is selected based on the user segments provided.

Abstract: Methods, systems, and computer-readable media for facilitating personalization of web content is provided, while protecting the privacy of the user data utilized to personalize the user's experience. A privacy vault may collect user data including user activity data, demographic data, and user interests submitted by a user. In one embodiment, the privacy vault operates on a user client device. The privacy vault sends the user data to a community vault that collects user data from multiple users. The community vault generates segment rules that whether a user belongs to a user segment, which expresses a user's interest. The segment rules are then communicated back to the privacy vault, which assigns one or more user segments to the user based on the user data available to the privacy vault and the segment rules. The privacy vault may communicate user segments to one or more content providers that supply personalized content that is selected based on the user segments provided.