In accordance with one embodiment of the present invention, there is provided a mechanism for implementing navigation seamlessly between sites in a computing environment in order to access resources without having to require users or user agents to re-authenticate. In one embodiment, there is provided the ability to determine different attribute sets for use with different resources on a target site for a user or user agent authenticated with a first site seeking to access one or more resources of the second site without re-authenticating. In one embodiment, there is provided the ability to map accounts on a first site to accounts on the second site using a set of attributes selected from among attributes provided by an application on the first site. With this mechanism, it is possible for applications or other resources to share information about a user or a user agent across disparate web sites seamlessly.