A system is for searching a plurality of project databases, including a service including a plurality of project database servers; a multi server single server signon processor for authenticating access by a user to a plurality of the project databases; a domain catalog server including a native server, a place server and a domain catalog; the native server for receiving from the user a search request and accessing the domain catalog with respect to the search request to obtain URLs for a plurality of documents in the project databases served by project servers configured to the domain catalog to which the user is authenticated and satisfying the search request; and the place server responsive to the URLs for building an XML result tree for responding to the search request.