Really Simply Syndicate Anything | rssa.at. Quickly and easily create an RSS feed for
your website. Then use that feed to share your content with other
people and applications all over the web (and if you like, even to
power your Twitter updates).
Add the rssa.at alerts widget to a page you’ve created a feed for,
and let your users sign up to receive email alerts when you publish new
content. Copy and paste a quick bit of widget code to embed a signup
form directly into your site.
FeedStitch. Take a bunch of RSS feeds, combine them into one and then publish them wherever you want. Not tried it, but it looks very simple and straightforward.
Tabbloid. Take an RSS feed or several, pop them into the little box, select a delivery option and on schedule they'll send you a print ready PDF. Nice idea.
Pingvine is a free service that takes an Atom or RSS feed from your blog, lifestream or favorite website and posts it to Twitter, Ping.fm or Identi.ca.
Feedmysearch. allows you to turn a Google search into an RSS search. Nothing new in that of course, since you can do that at Google anyway, but this makes things a little bit easier and gives you a lot of different ways in which you can save your search - to Pageflakes, Bloglines and so on.
Feed Source "is a new concept of RSS feed sharing. With Feed Source, you can display
any RSS feed on your website or blog. Let users stay up to date with
the latest information on any topic!" Not entirely sure how they reckon this is a new concept, but it does allow you to have a lot of control over the look and feel of the thing.