Hi, some time ago I wrote lucienne[1] using the happstack framework:

Lucienne is a simple server side feed aggregator/reader that helps you managing your subscribed feeds. It provides multi user support using basic access authentication. A running mongoDB serves as database backend.

For more information, check [1] and [2]. Best regards, Alex [1] http://hackage.haskell.org/package/lucienne [2] http://www.imn.htwk-leipzig.de/~abau/lucienne