Plagger is a pluggable RSS/Atom feed aggregator and remixer platform.
Everything is implemented as a small plugin just like qpsmtpd, blosxom
and perlbal. All you have to do is write a flow of aggregation,
filters, syndication, publishing and notification plugins in config
See <http://plagger.org/> for cookbook examples, quickstart document,
development community (Mailing List and IRC), subversion repository
and bug tracking.