Here's a good site for seeing Holmegaard and other Scandinavian glass.
It's an internet auction site, all items go through a brick and mortar house for valuation and identification.
They're pretty good with Holmegaard and Swedish glass as auction houses are in Denmark, Sweden, Norway and Germany/Austria. They started out in Denmark. Their identifications of Murano pieces sometimes leaves something to be desired, as well as paperweights. Holmegaard, Kosta etc they know pretty well.
Being in Norway shipping and custom costs are prohibitive for bidding on the non-Norwegian stuff,
but a man can look and dream ; )
Auction SiteAlexander