A method for associating a web event with a member of a group of users is implemented at a first computing device, the method including: receiving a data access request from a second computing device; examining the data access request to determine whether the second computing device provides a user login service; if the second computing device provides the user login service: causing the second computing device to collect personal information and authorization from the user of the second computing device using the user login service; receiving the user's personal information and authorization from the second computing device; and associating the data access request with the user's personal information in accordance with the user's authorization; and otherwise, associating the data access request with an identifier of the second computing device.