Links to other relevant sites

The principal reference must be to the local Austrian caving group, the Verein für Höhlenkunde im Obersteier.
The German Arbeitsgemeinschaft Höhle und Karst Grabenstetten e.V. is still active in the area and cooperating on friendly terms with CUCC. They have recently carried out much exploration in the southern area around Stellerweghöhle, including the most major discovery in the plateau in recent years, the connection of the Stellerweghöhle/Eishöhle system to Kaninchenhöhle.
Lancaster University Speleological Society had expeditions in 1987,88,89. A report of the 1987 expedition is on their separate Exploration website (apparently not linked to the main one).
University of Bristol Spelæological Society were present on the 1981 and 1982 expeditions as a guest club, and also independently in 1989 and 1990 (we believe; these last two trips were clandestine, and records are unsurprisingly rather sparse.)

The Landesverein für Höhlenkunde in Oberosterreich maintain a site covering the adjacent 1626 kataster area.
To our south in the Dachstein, in the 1543 and 1546 kataster areas, the local group is Verein für Höhlenkunde Hallstatt - Obertraun.
A group based around the "other CUCC", Cardiff University Caving Club, have been exploring in the Dachstein since the 1970's.
University of Leeds Speleological Association worked in the Tauplitz area in the mid-eighties. Note: All old ULSA addresses have been changed to redirect to the new site linked here, despite the fact that it doesn't seem to work.