So far the only feed editors I have found require that I manually enter content to be fed to readers. But I know there are programs that automatically detect new content and send it to subscribers. Can anyone refer to me to any of these programs? Haven't been able to find one on my own.
It depends on what you have in mind. Building an RSS generator from scratch seems a bit like reinventing the wheel. Many blog/portal/CMS packages will already do that for you. It's a function of the software. If your site is database generated then you could do something like this by outputting the content into an RSS template.
I think what I need is an RSS generator--I just didn't know the right term for it--that will capture new content automatically instead of my having to do it. I have a site where we add as many as ten new items a day. I'd like to get recommendations of specific software that is simple enough for a novice to use.