 A major distinction between KMS and current web practices is the distinction between regular items and "Annotation Items" (text items prefaced by the "@" characters).Annotation items have the connotation of being peripheral or meta-level, relative to the rest of the contents, making it easy (and apparent) as to what was regular content versus just notes to oneself or comments by others (including by programs).Annotation items with links thus have the connotation of being arbitrary cross-references (a la "See Also...") and thus are not seen by users, and more especially agents, as part of the hierarchical structure of the hypertext.