> allow servers to instruct clients on how to construct appropriate URIs Right. That would be great, and actually, that's what the commercial services do. Wi

> allow servers to instruct clients on how to construct appropriate URIs Right. That would be great, and actually, that's what the commercial services do. With NWS it goes something like this: Say the user has a lat/long. You fire off an http request for a document that tells you what "quadrant" you are in and the URL for it. You then fire off a request for the quadrant document, that lists the products that are available (and their associated URLs). You then fire another request for the actual product for that quadrant . . . This is not a real example, but this is basically how it works. Even when you can construct a single URL with the info you need, you still need to make multiple requests to have enough information to build the URL (if that makes sense). > You can make multiple requests over a single connection. You mean with some kind of http keep-alive thing? I'm not sure I can do that in these circumstance (with cURL). (edits for grammar, minor issues of clarity)