After being away for many years (at least that's how it feels), Linka's back !
They offer a broad range of interesting molds to cast your own 1/72 buildings in plaster.
Their catalog offers a wide range of wonderful new molds.

Another interesting website is hirstarts. They offer molds to cast yourself a huge selection of ruins, dungeons and castles. Though no scale is mentioned, the door heights look close to 1/40 to 1/50 and the wall thickness feels more like 1/25 to 1/20. But they have real cool stuff that might suit your diorama needs.
Even if you don't like the product, the website offers an enormous collection of practical tips that can help you to make better buildings.
(hint for all those who join in Market Garden !)
Jan
