Protected data sharing between advertisers and publishers

A computerized method carried out by an advertisement publisher service having at least one processor for facilitating the exchange of information between an advertiser and the advertisement publisher in an anonymous manner, the method comprising:

• receiving a request from the advertiser for online behavior data associated with a first set of users, each user in the first set of users identified only by the each user's respective common identifier (ID);
• for the each user in the first set of users, identifying a publisher ID associated with the each user's respective common ID;
• using the publisher IDs, accessing online behavior data for the first set of users;
• analyzing, using the at least one processor, the online behavior data for the first set of users;
• and
• communicating the analyzed online behavior data for the first set of users to the advertiser using only the each user's respective common ID.

A system for facilitating the anonymous exchange of information between an advertiser and an advertisement publisher, the system comprising:

• a computing device associated with a third-party agency service having one or more processors and one or more computer-storage media;
• and
• a data store coupled with the third-party agency service,
• wherein the third-party agency service:
• receives sets of user data from the advertiser, each set of user data being associated with a user having an advertising identifier (ID);
• receives sets of user data from the advertisement publisher, each set of user data being associated with a user having a publisher ID;
• maps each advertising ID to its corresponding publisher ID using the sets of user data from the advertiser and the sets of user data from the advertisement publisher, the each advertiser ID and the each corresponding publisher ID being associated with a same user;
• assigns a common ID to each mapped pair;
• and
• communicates the common IDs to the advertiser and the advertisement publisher.