Updated 04/12/2018 by B. Kohler 
Multihull Germany
Direct view from DXF/DWG drawings from
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The well known WEST SYSTEM EPOXY , very    informative
 For German readers. Very interesting page
Suppliers of KD860 computer cut  kits, all materials and related equipment if required. World wide shipment is possible.
Multihull Dynamics Inc.
This website is for those interested in Multihull sailing.  It allows  to compare one multihull sailboat in the database to another, as well as locate a wealth of literature related to Multihull Sailing vessels.
A must for every amateur boat builder. Lots of information and how do articles by people who do it. This is unique on the net.  Duckworks also a own online shop.
For everyone interested in junk rigs. Lots of technical information and several useful forums. Not only for junk rigs - wingsails, cruising and general themes too.
Ultramaraine in India can build all my designs. Ask them for a quota  and you will be surprised. The can also deliver kits. Besides my designs the have built many boats from traditional till modern.
Supplier for all materials interesting for builders
Besides, the give also advice what best to use on materials. The sell the very good Epoxy from Sicomin. It is a German company but there will be no language problem (English, Dutch)