Sharing information across community portals with FOAFRealm

Community portals such as blogs, wikis and photo sharing sites have become the new channels for information dissemination on the Web. When searching for information, many results end up in some type of community site. However, one cannot make use of the wealth of information that is available through the preferences of one's thematic social network, or through bookmarks or other documents, only those accessible through a social network. Also, due to multiple accounts being registered on a variety of community portals, there is a lack of semantics regarding the information that a particular user has created or bookmarked across this set of portals. This paper presents a method for sharing information across multiple community portals through a social semantic collaborative filtering system; this collaborative filtering extends a popular "Friend Of A Friend" (FOAF) network; it enables users to share the bookmarks and community documents that they create.