It seems most of the RSS paradigm leans towards "broadcasting," ie, the audience of the RSS item is as many folks as possible. I've been thinking about how useful it might be to make "saved searches" RSS documents. A user of my search engine could then add the RSS document of a saved search to the rest of their collection of RSS documents.
The problem is the very personalized nature of the feed. My understanding of how most RSS aggregators work is that a central "authority" identifies and adds feeds to a particular interface. Thus I can't add my "saved search on foo" so that only I can see it. I can imagine that there's an existence proof that some interface out there allows the user to directly add their own feeds, but what is desired is that a user of my search engine could add their "saved search on foo" (and *not* their "saved search on bar") to their favorite aggregator.
Am I right in my understanding of this problem? I have to admit to a merely theoretical understanding of RSS with the belief that I probably use it more often than I know (except for early experiments with my.netscape).
BTW, I'm not the only person to want saved searches available ia RSS: "In the future, I hope to retrieve saved searches from the popular news engines like World News via RSS feeds and postings to listservs to which I subscribe. " See http://www.llrx.com/features/rssforlibrarians.htm
Somewhere in LJ I've seen a page that describes the current state of developer projects, but I can't find it again. Anyway, within that there is a note that Blogger API XML-RPC support is 99% finished. I wish I could find it again so I could say "Yes, Please!"
123 - Ooh Look at that! I can post here as well.