Limiters let you focus your search in a variety of ways. Most databases let you limit your results by date, by format (eg PDF only), or specify fulltext only. Check the help section of the database you're in for more information.  Mark list Some databases allow you to 'mark' particular articles or records and save them to a 'mark list'. This allows you to view them later in your session or print, email or save them. These records stay on your mark list until you clear them or finish your search session.