Is anyone able to make these references to the plays as clickable links to an online text? This could be relatively easy with XSLT or a short script / program to process the kml file. It could read the placename e.g "Blackheath, Henry V, part 2:4,2", then extract the name of the play, look up the appropriate play's text, search for the line containing the word "Blackheath", and add a link into the KML file to jump to the reference location at one of the free text sites....