Shelfari, a previous social cataloging Web site for textbooks. Shelfari users created Digital bookshelves from the titles which they owned or experienced browse and they could fee, evaluation, tag and explore their books. End users could also create groups that other users could be a part of, make discussions and https://ajmozone18518.bligblogging.com/27176754/new-step-by-step-map-for-ajmslot