Abstract: A computer-implemented method including forming a first user information database stored on a first server by retrieving, from a browser session, a first piece of user information including at least local user identification data and storing the first piece of user information in a user profile of the first user information database. The method further includes querying the first user information database for a second piece of user information. Responsive to not identifying the second piece of user information in the first user information database, the method further includes querying a second user information database stored on a second server for the second piece of user information associated with the first piece of user information. The method further includes retrieving the second piece of user information from the second database and saving the second piece of user information to the user profile of the first user information database.

Abstract: A computing system directs a transmission of a first data piece and a second data piece to an electronic device, when the electronic device is engaged in an initial web browser session on an initial web browser, for storage in an electronic device memory. The first data piece is associated with a first domain linked to the initial web browser and contains an electronic device identification. The second data piece is associated with a second domain linked to the initial web browser and contains the electronic device identification. The computing system retrieves the second data piece from the electronic device memory when the computing system is unable to retrieve the first data piece from the electronic device memory. The second data piece retrieved from the electronic device contains the electronic device identification and items of anonymous personal identification information provided by the electronic device during the initial web browser session.

Abstract: A computer-implemented method including forming a first user information database stored on a first server by retrieving, from a browser session, a first piece of user information including at least local user identification data and storing the first piece of user information in a user profile of the first user information database. The method further includes querying the first user information database for a second piece of user information. Responsive to not identifying the second piece of user information in the first user information database, the method further includes querying a second user information database stored on a second server for the second piece of user information associated with the first piece of user information. The method further includes retrieving the second piece of user information from the second database and saving the second piece of user information to the user profile of the first user information database.

Abstract: A computer-implemented method including forming a first user information database stored on a first server by retrieving, from a browser session, a first piece of user information including at least local user identification data and storing the first piece of user information in a user profile of the first user information database. The method further includes querying the first user information database for a second piece of user information. Responsive to not identifying the second piece of user information in the first user information database, the method further includes querying a second user information database stored on a second server for the second piece of user information associated with the first piece of user information. The method further includes retrieving the second piece of user information from the second database and saving the second piece of user information to the user profile of the first user information database.