ABSTRACT
With a view to preservation the publisher of an Enhanced Publication should set up rules about the quality of the file, file types, and links which may be used. Both publishers and researchers should invest in enhancing publications. Software and several tools for publishers and repositories are available for adding comments to online publications. Some publishers enhance articles by tagging the data in the article. For tagging they use many standards and ontologies, which are all discipline-specific. It will be difficult to provide these services on a more general level.
