bill - 12:12 am on Sep 4, 2009 (gmt 0)

I'm not sure I follow you here. The title of your thread is one question about RSS, but then you're talking about site-maps XML files in the body. Those are two different topics.

If you have site map questions please post them in our Sitemaps, Meta Data, and robots.txt forum [webmasterworld.com].

As for RSS and SEO [google.com], this is a topic that comes up from time to time. You'd probably get a better response if you had a more specific question. Otherwise those threads I linked to will probably give you much the same advice I could rehash here.