Bridging the worlds of NNTP clients and RSS feeds, nntp//rss is an application that will enable you to use your existing favorite NNTP newsreader to read your information channels.
http://www.methodize.org/nntprss
Applications that bring together RSS feeds on your own computer:
http://www.larkfarm.com/rss_resources.htm
http://www.cincomsmalltalk.com/BottomFeeder/