Managing Personal Information on a Network

Devices, systems, and methods for managing personal information by providing a centralized source or database for a user's information, and enabling the user to regulate privacy levels for each information item or category of information. Templates are provided as a table of hierarchies, or an onion layers model. Private information may be stored in an inner layer while public information may be stored in an outer layer, with the ability to define and customize multiple layers and categories within the template. A requesting entity requests information via a disseminating server that acts as a gateway for authenticating, authorizing, and providing access to the requesting entity. The user may therefore control and regulate their online presence simply by monitoring who requests their information and adjusting privacy levels accordingly.