For users, content providers and service providers who need more values beyond plain readership and sharing of digitised 
books, the sBook is a concept prototype that enables a dynamic and individualised learning experience with cross-media
cross-community information discovery through socialisation of reading activity.
Unlike BookGlutton, Inkling and Copia, sBook supports textual and video annotations, community-based sharing of 
annotations, semantic and social navigation inside a book with semantic heatmap, and semantic cross-media discovery 
of videos related to selected passage in a book.
More details on the position paper below.