Web Tagging with Annotea Shared/Social Bookmarks and Topics Marja-Riitta Koivunen, Ph.D. Annotea marja@annotea.org ABSTRACT Annotea originated metadata based, shared/social bookmarks and topics as a logical extension to Annotea shared annotations and replies. These bookmarks and topics precede the tagging and social bookmarking services and tools existing today. Annotea bookmarks and topics supp