I have an External Method (which fetches, grinds up, and mixes data from several URLs) which can take 30 secs or more to run. Since Zope isn't concurrent yet, it blocks all other requests for an unacceptably long period. I vaguely remember reading about a way to return a "Processing request" page immediately, then have the client automatically retry at intervals until the final response is ready. The Method could easily be made into an external program, but then I'm not really sure of the best way to launch and wait for completion of an external program from Zope. I realize that this is really a general web server question more than a Zope question, but it might be nice to have a Product which can handle this situation automatically. Thanks, Evan Simpson