Iris is an interface for monitoring multiple pages and RSS files for changes. You can affect keywords or regexp to each web-page to receive mail alert. Version 6.6 is a web based application. Since version 7.2 it's a Perl-gtk application
Live-bookmarks Manager is a Perl CGI script that helps you manage your live-bookmarks / RSS feeds through an easy to use web-interface. Currently it can add and delete bookmarks to/from an RSS feed.