I would like to be able to massage certain categories of news feeds to make their entries more consistent. For example, when a job seeker subscribes to two different job sites the feeds s/he gets will differ markedly. One would like to be able to perform lookups and other work in the news reader, process the incoming feed on the basis of any extra information found and then present the massaged job information to the user.
Have you seen any open source plug-ins, widgets or codes for news readers that invite modification?
Thanks for any suggestions.