Query Protocols...
PICS provided a query mechanism for obtaining ratings from label bureaus:
GET /Ratings?opt=generic& u="http%3A%2F%2Fexample.com%2Fmayhem"& s="http%3A%2F%2Fwww.w3.org%2F2004%2F05%2F07-CS-RDF%2Fv2.5" HTTP/1.0
PICS provided a query mechanism for obtaining ratings from label bureaus:
GET /Ratings?opt=generic& u="http%3A%2F%2Fexample.com%2Fmayhem"& s="http%3A%2F%2Fwww.w3.org%2F2004%2F05%2F07-CS-RDF%2Fv2.5" HTTP/1.0