1. A method for searching a plurality of project databases, comprising: configuring a service to include a plurality of project servers, a domain catalog server, a domain catalog, and a domain catalog server search index; authenticating a user for access to said service; receiving a search request from a user; with reference to said domain catalog, executing a domain search for documents satisfying said search request in all databases within said service to which said user is authenticated; building an XML document tree of URLs to said documents satisfying said search request; and deriving from said XML document tree and returning to said user a list of document URLs satisfying said search request.