Vanden Plas Coachbuilder (Book) Comprehensive history of Vanden Plas, with huge number of (b/w/) photos, design drawings and paperwork, including extracts from the order book. The book concentrates on the period to 1968, with just a short chapter for the vehicles produced after that point.
The Porsche 911 Evolution (Website) Website dedicated to the more than 30 years of Porsche 911 history, including model-by-model description, technical specs, gallery, and links
ChevyTrucks.org (Website) Extensive resource for classic Chevy trucks, especially those from 1941-1959. Includes technical database, history of the Chevy truck, resources, photos, etc