Just for info (and I'll put this on the Scandinavian discussion board as well), I've been in touch with Peter who has developed
http://www.HarderNet.dk (thank you again Ross for bringing this website to my attention) and he told me the following:
'have just been allowed to bring all photoes from the large "Holmegaard studio, prototype and unika collection" that hold a collection of more than 25.000 items collected by Holmegaard and contains glass items from most of the glass factories that have been in Denmark, Conradsminde Glasswork, Nørholm Glasswork, Aalborg Glasswork, Aarhus Glasswork, Fyens Glasswork, Kastrup Glasswork and Holmegaard Glasswork.
I am afraid that the site over the next couple of year will grow from the 7.500 photoes, at the moment, to about 35.000 and will probably be the site that documentates Danish Glass since the beginning in 1825 up to today'
So it will be worth keeping your eyes out for this - the website is already a fabulous resource but it looks set to get even better.