RSS Readers

•      Web based tools: Bloglines, Google Reader, Rojo, My Yahoo! RSS Reader

•      Client based: RSSReader, Sage, NewsFire, FeedReader

OPML Creators

•      OPML Generator, a Web-based tool http://www.opmlgenerator.info/

•      FeedShow OPML Builder: http://www.feedshow.com/goodies/opml/OPMLBuilder-create-opml-from-rss-list.php

•      Text2OPML Generator: generate OPML files from a list of text files http://www.unold.dk/code/opmlgen/