Meta Information Exchange System "The WYMIWYG meta information exchange system (mies) allows you to add and retrieve comments, notes, explanations, ratings and similar information (i.e. annotations) about webpages. Mies shares the annotations in a decentralized and trust based network with peers.
Soon it will also be possible to share bookmarks in the same decentralized manner. This means that the list of your categorized bookmarks will be permanently updated with new bookmarks that are very likely to be of interest for you. This will be like having a highly personalized edition of yahoo or dmoz.
This is a first step towards a more decentralized and open way knowledge is acquired and produced."
It uses Prevayler and Jena to provide a zero configuration RDF store.