6. A method according to claim 1 and comprising, upon receipt of a response at the client terminal, caching in a local cache any determined rating together with the associated query.
6. A method according to claim 1 and comprising, upon receipt of a response at the client terminal, caching in a local cache any determined rating together with the associated query. 8. A method according to claim 6 and comprising, between steps 1) and 2), querying said local cache to determine whether or not it contains an entry for a component of the Uniform Resource Identifier and, if not, then including that component or its derivative as said first component or its derivative in said first, query, and, if so, then presenting the rating to a user and constructing said query string of said first query according to a specified format definition, said further query string comprising the data associated with the component of the Uniform Resource Identifier.